Biology Test Paper Final Neet (UG) 2022

Welcome to your Biology Test Paper Final Neet (UG) 2022

Name Phone Number

Statements related to human Insulin are given below.

Which statement(s) is/are correct about genetically engineered Insulin?

(a) Pro-hormone insulin contain extra stretch of C-peptide

(b) A-peptide and B-peptide chains of insulin were. produced separately in E.coli, extracted and combined by creating disulphide bond between them.

(d) Pro-hormone Insulin needs to be processed for converting into a mature and functional hormone.

(e) Some patients develop allergic reactions to the foreign insulin

Choose the most appropriate answer from the

options given below:

(a), (b) and (d) only

(c), (d) and (e) only

(b)only

None

If a geneticist uses the blind approach for sequencing the whole genome of an organism, followed by assignment of function to different segments, the methodology adopted by him is called as:

Expressed sequence tags

Sequence annotation

Bioinformatics

Gene mapping

None

Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:

Breakdown of proton gradient

Movement of protons across the membrane to the stroma

Breakdown of electron gradient

Reduction of NADP to NADPH, on the stroma side of the membrane

None

Identify the incorrect statement related to Pollination:

Flowers produce foul odours to attract flies and beetles to get pollinated

Pollination by water is quite rare in flowering plants

Pollination by wind is more common amongst abiotic pollination

Moths and butterflies are the most dominant pollinating agents among insects

None

136. Match List-I with List-II.

List-I	List-II
(a) Metacentric chromosome	(i) Centromere situated close to the end forming one extremely short and one very long arms
(b) Acrocentric chromosome	(ii) Centromere at the terminal end
(c) Sub-metacentric	(iii) Centromere in the middle forming two equal arms of chromosomes
(d) Telocentric chromosome	(iv) Centromere slightly away from the middle forming one shorter arm and one longer arm

Choose the correct answer from the options given below:

(a)-(i),(b)-(ii), (c)-(iii), (d)-(iv)

(a)-(i), (b)-(iii), (c)-(ii),(d)-(iv)

(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)

(a)-(iii),(b)-(i), (c)-(iv).(d)-(ii)

None

If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness?

50%

25%

100%

75%

None

The flowers are Zygomorphic in:

(a) Mustard

(b) Gulmohar

(d) Datura

(e) Chilly

Choose the correct answer from the options given below:

(b), (c) Only

(d), (e) Only

(a). (b), (c) Only

(c), (d), (e) Only

None

Read the following statements on lipids and find out correct set of statements:

(a) Lecithin found in the plasma membrane is a glycolipid

(b) Saturated fatty acids possess one or more c bonds C

(d) Lipids are generally insoluble in water but soluble in some organic solvents

(e) When fatty acid is esterified with glycerol, monoglycerides are formed

Choose the correct answer from the options given below:

(a), (d) and (e) only

(a). (b) and (c) only

(c), (d) and (e) only

(a), (b) and (d) only

None

Given below are two statements:

Statement I:

Mycoplasma can pass through less than 1 micron filter size.

Statement II:

Mycoplasma are bacteria with cell wall

In the light of the above statements, choose the most appropriate answer from the options given below:

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are correct

Statement I is correct but Statement II is incorrect

Both Statement I and Statement II are incorrect

None

10.

Given below are two statements:

Statement I:

In a scrubber the exhaust from the thermal plant is passed through the electric wires to charge the dust particles.

Statement II:

Particulate matter (PM 2.5) can not be removed by scrubber but can be removed by an electrostatic precipitator.

In the light of the above statements, choose the most appropriate answer from the options given below:

Both Statement I and Statement II are correct

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are incorrect

None

11.

Which of the following occurs due to the presence of autosome linked dominant trait ?

Sickle cell anaemia

Haemophilia

Thalessemia

Myotonic dystrophy

None

12.

Breeding crops with higher levels of vitamins and minerals or higher proteins and healthier fats is called:

Bio-fortification

Bio-remediation

Bio-accumulation

Bio-magnification

None

13.

Read the following statements and choose the set of correct statements:

(a) Euchromatin is loosely packed chromatin

(b) Heterochromatin is transcriptionally active

(d) Histones are rich in lysine and arginine

(e) A typical nucleosome contains 400 bp of DNA helix

Choose the correct answer from the options given below:

(b).(e) Only

(b), (d), (e) Only

(a), (c), (e) Only

(a), (c), (d) Only

None

14.

Which of the following is not observed during apoplastic pathway?

The movement does not involve crossing of cell membrane

Apoplastic is continuous and does not provide any barrier to water movement

Movement of water occurs through intercellular spaces and wall of the cells.

The movement is aided by cytoplasmic streaming

None

15.

Tegmina in cockroach, arises from:

Prothorax

Prothorax and Mesothorax

Mesothorax

Metathorax

None

16.

In-situ conservation refers to

Conserve only high risk species

Protect and conserve the whole ecosystem

Conserve only endangered species

Conserve only extinct species

None

17.

Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver_ml of O2 to the tissues.

5ml

4 ml

10 ml

2 ml

None

18.

Given below are two statements:

Statement 1:

The release of sperms into the seminiferous tubules is called spermiation.

Statement II:

Spermiogenesis is the process of formation of sperms from spermatogonia.

In the light of the above statements, choose the

most appropriate answer from the options given

below:

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are correct

None

19.

. If '8 Drosophila in a laboratory population of '80' died during a week, the death rate in the population individuals per Drosophila per week. is

0.1

1.0

zero

None

20.

Which part of the fruit, labelled in the given figure makes it a false fruit?

B→ Endocarp

C→ Thalamus

A→ Mesocarp

D→ Seed

None

21.

Identify the asexual reproductive structure associated with Penicillium:

Conidia

Buds

Gemmules

Zoospores

None

22.

. Which of the following is not the function of conducting part of respiratory system?

Temperature of inhaled air is brought to body temperature

Inhaled air is humidified

Provides surface for diffusion of O, and CO,

It clears inhaled air from foreign particles

None

23.

In the taxonomic categories which hierarchial arrangement in ascending order is correct in case of animals ?

Kingdom, Order, Phylum, Class, Family, Genus, Species

Kingdom, Order, Class, Phylum, Family, Genus, Species

Kingdom, Class, Phylum, Family, Order, Genus, Species

Kingdom, Phylum, Class. Order, Family, Genus, Species

None

24.

The gaseous plant growth regulator is used in plants to:

help overcome apical dominance

kill dicotyledonous weeds in the fields

promote root growth and root hair formation to increase the absorption surface

speed up the malting process

None

25.

Identify the microorganism which is responsible for the production of an immunosuppressive molecule cyclosporin A:

Clostridium butylicum

Streptococcus cerevisiae

Aspergillus niger

Trichoderma polysporum

None

26.

Which of the following is present between the adjacent bones of the vertebral column?

Smooth muscle

Cartilage

Intercalated discs

Areolar tissue

None

27.

Match the plant with the kind of life cycle it exhibits

List-1	List-II
(a) Spirogyra	(i) Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte
(b) Fern	(ii) Dominant haploid free-living gametophyte
(c) Funaria	(iii) Dominant diploid sporophyte alternating with reduced gametophyte called prothallus
(d) Cycas	(iv) Dominant haploid leafy gametophyte alternating with partially dependent multicellular sporophyte

Choose the correct answer from the options given below:

(a)(ii),(b)(iv), (c)-(i).(d)-(iii)

(a)(ii),(b)(iii), (c)-(iv).(d)-(i)

(a)(iii).(b)(iv), (c)-(i), (d)-(ii)

(a)-(iv), (b)-(i), (c)-(ii), (d)(iii)

None

28.

Given below are two statements: one is labelled as

Assertion (A) and the other is labelled as Reason (R).

Assertion (A):

Polymerase chain reaction is used in DNA amplification

Reason (R):

The ampicillin resistant gene is used as a selectable marker to check transformation.

In the light of the above statements, choose the correct answer from the options given below:

Both (A) and (R) are correct and (R) is the correct explanation of (A)

(A) is correct but (R) is not correct

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

(A) is not correct but (R) is correct

None

29.

Which of the following functions is not performed by secretions from salivary glands?

Digestion of complex carbohydrates

Digestion of disaccharides

Control bacterial population in mouth

Lubrication of oral cavity

None

30.

A dehydration reaction links two glucose molecules to produce maltose. If the formula for glucose is C6H12O6 then what is the formula for maltose ?

C₁₂H₂₄O₁₂

C₁₂H₂₄O₁₁

C₁₂H₂₂O₁₁

C₁₂H₂₀O₁₀

None

31.

Given below are two statements:

Statement 1:

Autoimmune disorder is a condition where body defense mechanism recognizes its own cells as foreign bodies.

Statement II:

Rheumatoid arthritis is a condition where body does not attack self cells.

In the light of the above statements, choose the most appropriate answer from the options given below:

Statement I is correct but Statement II is incorrect

Both Statement I and Statement II are correct

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are incorrect

None

32.

Match List-I with List-II.

List-I	List-II
(a) Manganese	(i) Activates the enzyme catalase
(b) Magnesium	(ii) Required for pollen germination
(c) Boron	(iii) Activates enzymes of respiration
(d) Iron	(iv) Functions in splitting of water during photosynthesis

Choose the correct answer from the options given below:

(a)(iii), (b)(iv), (c)- (i), (d) - (ii)

(a)(iv), (b)(i), (c) (ii), (d) (iii)

(a)(iii), (b)(i), (c) - (ii), (d) - (iv)

(a)(iv), (b)(iii).(c) (ii), (d) (i)

None

33.

Match List -1 with List -II.

List-l	List-II
(Biological Molecules)	(Biological functions)
(a) Glycogen	(i) Hormone
(b) Globulin	(ii) Biocatalyst
(c) Steroids	(iii) Antibody
(d) Thrombin	(iv) Storage product

Choose the correct answer from the options given below:

(a)(ii), (b)-(iv), (c)-(iii), (d)-(i)

(a)(iv), (b)-(iii), (c)-(i), (d)-(ii)

(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)

(a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)

None

34.

Which one of the following never occurs during mitotic cell division?

Spindle fibres attach to kinetochores of chromosomes

Coiling and condensation of the chromatids

Pairing of homologous chromosomes

Movement of centrioles towards opposite poles

None

35.

What is the role of large bundle shealth cells found around the vascular bundles in C, plants?

To provide the site for photorespiratory pathway

To increase the number of chloroplast for the operation of Calvin cycle

To enable the plant to tolerate high temperature

To protect the vascular tissue from high light intensity

None

36.

The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood,

(a) It is also called as the earlywood

(b) In spring season cambium produces xylem elements with narrow vessels

(d) The springwood along with autumnwood shows alternate concentric rings forming annual rings

(e) It has lower density

Choose the correct answer from the options given below:

(c), (d) and (e) Only

(a), (b).(d) and (e) Only

(a), (c), (d) and (e) Only

(a), (b) and (d) Only

None

37.

The device which can remove particulate matter present in the exhaust from a thermal power plant is:

STP

Electrostatic Precipitator

Incinerator

Catalytic Convertor

None

38.

"Girdling Experiment was performed by Plant Physiologists to identify the plant tissue through which:

water is transported

for both water and food transportation

osmosis is observed

food is transported

None

39.

Which one of the following produces nitrogen fixing nodules on the roots of Alnus?

Rhizobium

Frankia

Beijernickia

Rhodospirillum

None

40.

Given below are two statements:

Statement I:

The coagulum is formed of network of threads called thrombins.

Statement II:

Spleen is the graveyard of erythrocytes

In the light of the above statements, choose the most appropriate answer from the options given

below:

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are correct

None

41.

Match List -I with List - II.

List-I	List-II
(a) Bronchioles	(i) Dense Regular Connective Tissue
(b) Goblet cell	(ii) Loose Connective Tissue
(c) Tendons	(iii) Glandular Tissue
(d) Adipose Tissue	(iv) Ciliated Epithelium

Choose the correct answer from the options given below:

(a)(ii), (b)-(i), (c)-(iv), (d)-(iii)

(a)(iv), (b)-(iii), (c)-(i), (d)-(ii)

(a)(i), (b)-(ii), (c)-(iii), (d)-(iv)

(a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

None

42.

What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?

Six

Four

Eight

Two

None

43.

In which of the following animals, digestive tract has additional chambers like crop and gizzard ?

Pavo, Psittacula, Corvus

Catla, Columba, Crocodilus

Corvus, Columba, Chameleon

Bufo, Balaenoptera, Bangarus

None

44.

Which of the following statements with respect to Endoplasmic Reticulum is incorrect?

RER has ribosomes attached to ER

SER is devoid of ribosomes

SER are the sites for lipid synthesis

In prokaryotes only RER are present

None

45.

Detritivores breakdown detritus into smaller particles. This process is called:

Catabolism

Humification

Fragmentation

Decomposition

None

46.

In an E.coli strain i gene gets mutated and its product can not bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome?

z, y, a genes will be transcribed

z, y, a genes will not be translated

RNA polymerase will bind the promoter region

Only z gene will get transcribed

None

47.

Which of the following is incorrectly matched?

Volvox - Starch

Ectocarpus - Fucoxanthin

Ulothrix - Mannitol

Porphyra - Floridian Starch

None

48.

Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for:

Biodiversity loss

Competition

Natality

Population explosion

None

49.

Given below are two statements:

Statement I:

Decomposition is a process in which the detritus is degraded into simpler substances by microbes

Statement II:

Decomposition is faster if the detritus is rich in lignin and chitin

In the light of the above statements, choose the correct answer from the options given below:

Both Statement I and Statement II are incorrect

Both Statement I and Statement II are correct

Statement I is incorrect but Statement II is correct

Statement I is correct but Statement II is incorrect

None

50.

In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because:

Gene isolated from marrow cells producing ADA is introduced into cells at embryonic stages

Genetically engineered lymphocytes are not immortal cells.

Retroviral vector is introduced into these lymphocytes.

Lymphocytes from patient's blood are grown in culture, outside the body.

None

51.

Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis?

(a) It results in the formation of haploid gametes

(b) Differentiation of gamete occurs after the completion of meiosis

(d) It is controlled by the Luteinising hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary

(e) It is initiated at puberty

Choose the most appropriate answer from the options given below:

(b), (d) and (e) only

(b), (c) and (e) only

(b) and (c) only

None

52.

Natural selection where more individuals acquire specific character value other than the mean character value, leads to:

Stabilising change

Disruptive change

Directional change

Random change

None

53.

Identify the correct set of statements:

(a) The leaflets are modified into pointed hard thoms in Citrus and Bougainvillea

(b) Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin

(d) Rhizophora shows vertically upward growing roots that help to get oxygen for respiration

(e) Subaerially growing stems in grasses and strawberry help in vegetative propagation

Choose the correct answer from the options given below:

(b), (c), (d) and (e) Only

(b) and (c) Only

(a), (b), (d) and (e) Only

(a) and (d) Only

None

54.

Which one of the following will accelerate phosphorus cycle?

Buming of fossil fuels

Volcanic activity

Weathering of rocks

Rain fall and storms

None

55.

The process of translation of mRNA to proteins begins as soon as:

Both the subunits join together to bind with mRNA

The larger subunit of ribosome encounters mRNA

The small subunit of ribosome encounters mRNA

The tRNA is activated and the larger subunit of ribosome encounters mRNA

None

56.

Given below are two statements: one is labelled as

Assertion (A) and the other is labelled as Reason (R).

Assertion (A):

All vertebrates are chordates but all chordates are not vertebrates.

Reason (R):

Notochord is replaced by vertebral column in the adult vertebrates

In the light of the above statements, choose the most appropriate answer from the options given

below:

(A) is correct but (R) is not correct

Both (A) and (R) are correct and (R) is the correct explanation of (A)

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

(A) is not correct but (R) is correct

None

57.

Regarding Meiosis, which of the statements is incorrect?

Four haploid cells are formed at the end of Meiosis-II

DNA replication occurs in S phase of Meiosis-II

There are two stages in Meiosis, Meiosis-I and II

Pairing of homologous chromosomes and recombination occurs in Meiosis-l

None

58.

Which one of the following statements is correct?

The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria

Blood moves freely from atrium to the ventricle during joint diastole.

The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction

Increased ventricular pressure causes closing of the semilunar valves.

None

59.

Given below are two statements

Statement I:

Cleistogamous flowers are invariably autogamous

Statement II:

Cleistogamy is disadvantageous as there is no chance for cross pollination.

In the light of the above statements, choose the correct answer from the options given below

Statement I is correct but Statement Il is incorrect

Both Statement I and Statement II are incorrect

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are correct

None

60.

Lippe's loop is a type of contraceptive used as:

Cervical barrier

Vault barrier

Copper releasing IUD

Non-Medicated IUD

None

61.

Which one of the following statement is not true regarding gel electrophoresis technique?

The separated DNA fragments are stained by using ethidium bromide

Bright orange coloured bands of DNA can be observed in the gel when exposed to UV light.

The presence of chromogenic substrate gives blue coloured DNA bands on the gel.

The process of extraction of separated DNA strands from gel is called elution

None

62.

XO type of sex determination can be found in:

Grasshoppers

Monkeys

Birds

Drosophila

None

63.

Select the incorrect statement with respect to acquired immunity.

Acquired immunity is non-specific type of defense present at the time of birth.

Anamnestic response is due to memory of first encounter.

Anamnestic response is elicited on subsequent encounters with the same pathogen.

Primary response is produced when our body encounters a pathogen for the first time.

None

64.

Given below are two statements:

Statement I:

Restriction endonucleases recognise specific sequence to cut DNA known as palindromic nucleotide sequence.

Statement II:

Restriction endonucleases cut the DNA strand a little away from the centre of the palindromic site.

In the light of the above statements, choose the most appropriate answer from the options given below:

Statement I is correct but Statement II is incorrect

Both Statement I and Statement II are incorrect

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are correct

None

65.

. Select the incorrect statement with reference to mitosis:

Chromosomes decondense at telophase.

All the chromosomes lie at the equator at metaphase

Spindle fibres attach to centromere of chromosomes

Splitting of centromere occurs at anaphase

None

66.

Select the incorrect statement regarding synapses:

Chemical synapses use neurotransmitters

The membranes of presynaptic and postsynaptic neurons are in close proximity in an electrical synapse.

Impulse transmission across a chemical synapse is always faster than that across an electrical synapse.

Electrical current can flow directly from one neuron into the other across the electrical synapse.

None

67.

If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs?

6.6 x10 bp

3.3 x 10 bp

3.3 x10 bp

6.6 x 10 bp

None

68.

. In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to

(a) secretion of secondary metabolities and their deposition in the lumen of vessels.

(b) deposition of organic compounds like tannins and resins in the central layers of stem.

(d) deposition of tannins, gum, resin and aromatic substances in the peripheral layers of stem.

(e) presence of parenchyma cells, functionally active xylem elements and essential oils.

Choose the correct answer from the options given below:

(a) and (b) Only

(b) and (d) Only

(d) and (e) Only

None

69.

Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants:

Cytokinin

Gibberellin

ABA

Ethylene

None

70.

. The entire fleet of buses in Delhi were converted to CNG from diesel. In reference to this, which one of the following statements is false?

It is cheaper than diesel

It can not be adulterated like diesel

CNG burns more efficiently than diesel

The same diesel engine is used in CNG buses making the cost of conversion low

None

71.

Nitrogenous waste is excreted in the form of pellet or paste by:

Pavo

Ornithorhynchus

Hippocampus

Salamandra

None

72.

Hydrocolloid carrageen is obtained from:

Chlorophyceae and Phaeophyceae

Rhodophyceae only

Phaeophyceae and Rhodophyceae

Phaeophyceae only

None

73.

Transposons can be used during which one of the following?

Autoradiography

Gene sequencing

Gene silencing

Polymerase Chain Reaction

None

74.

The appearance of recombination nodules on homologous characterizes: chromosomes during meiosis

Terminalization

Bivalent

Synaptonemal complex

Sites at which crossing over occurs

None

75.

Which of the following statements is not true?

Flippers of penguins and dolphins are a pair of homologous organs

Homology indicates common ancestry

Analogous structures are a result of convergent evolution

Sweet potato and potato is an example of analogy

None

76.

DNA polymorphism forms the basis of:

DNA finger printing

Translation

Genetic mapping

Both genetic mapping and DNA finger printing

None

77.

Addition of more solutes in a given solution will:

make its water potential zero

raise its water potential

lower its water potential

not affect the water potential at all

None

78.

Which of the following are not the effects of Parathyroid hormone?

(a) Stimulates the process of bone resorption

(b) Decreases Ca level in blood

(d) Decreases the absorption of Cat from digested food

(e) Increases metabolism of carbohydrates

Choose the most appropriate answer from the options given below:

(a) and (e) only

(b) and (c) only

(b), (d) and (e) only

(a) and (c) only

None

79.

Exoskeleton of arthropods is composed of:

Cellulose

Chitin

Glucosamine

Cutin

None

80.

Given below are two statements: one is labelled as

Assertion (A) and the other is labelled as Reason (R).

Assertion (A):

Mendel's law of Independent assortment does not hold good for the genes that are located closely on the same chromosome.

Reason (R):

Closely located genes assort independently.

In the light of the above statements, choose the correct answer from the options given below:

Both (A) and (R) are correct and (R) is the correct explanation of (A)

(A) is not correct but (R) is correct

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

(A) is correct but (R) is not correct

None

81.

Given below are two statements:

Statement I:

Mendel studied seven pairs of contrasting traits in pea plants and proposed the Laws of Inheritance

Statement II:

Seven characters examined by Mendel in his experiment on pea plants were seed shape and colour, flower colour, pod shape and colour, flower position and stem height

In the light of the above statements, choose the correct answer from the options given below:

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are correct

None

82.

Which one of the following statements cannot be connected to Predation?

Both the interacting species are negatively impacted

It is necessitated by nature to maintain the ecological balance

It might lead to extinction of a species

It helps in maintaining species diversity in a community

None

83.

In the following palindromic base sequences of DNA, which one can be cut easily by particular restriction enzyme?

5 CTCAGT3; 3GAGTCA5'

5 GTATTC3: 3 CATAAG5

5' GAATTC3: 3 CTTAAG5'

5'GATACT3'; 3' CТATGA5

None

84.

. While explaining interspecific interaction of population, (+) sign is assigned for beneficial interaction, sign is assigned for detrimental interaction and (0) for neutral interaction. Which of the following interactions can be assigned (+) for one species and (-) for another species involved in the interaction?

Amensalism

Competition

Predation

Commensalism

None

85.

Which of the following is not a desirable feature of a cloning vector?

Presence of single restriction enzyme site

Presence of two or more recognition sites

Presence of origin of replication

Presence of a marker gene

None

86.

Which one of the following plants shows vexillary aestivation and diadelphous stamens?

Pisum sativum

Colchicum autumnale

Solanum nigrum

Allium cepa

None

87.

Which of the following is a correct statement?

Bacteria are exclusively heterotrophic organisms

Slime moulds are saprophytic organisms classified under Kingdom Monera.

Mycoplasma have DNA, Ribosome and cell wall

Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.

None

88.

The recombination frequency between the genes a & c is 5%, b & c is 15%, b & d is 9%, a & b is 20%, c & d is 24% and a & d is 29%. What will be the sequence of these genes on a linear chromosome ?

a, d, b, c

a, b, c, d

a, c, b, d

d, b, a, c

None

89.

At which stage of life the oogenesis process is initiated?

Birth

Adult

Puberty

Embryonic development stage

None

90.

What amount of energy is released from glucose during lactic acid fermentation?

More than 18%

Approximately 15%

Less than 7%

About 10%

None

91.

Given below are two statements:

Statement I:

Fatty acids and glycerols cannot be absorbed into the blood

Statement II:

Specialized lymphatic capillaries called lacteals carry chylomicrons into lymphatic vessels and ultimately into the blood.

In the light of the above statements, choose the most appropriate answer from the options given below:

Statement I is correct but Statement II is incorrect

Both Statement I and Statement II are incorrect

Both Statement I and Statement II are correct

Statement I is incorrect but Statement II is correct

None

92.

Ten E.coli cells with "NdsDNA are incubated in medium containing "N nucleotide. After 60 minutes, how many E.coli cells will have DNA totally free from "N?

60 cells

80 cells

20 cells

40 cells

None

93.

Match List -I with List -II with respect to methods of Contraception and their respective actions.

List-1	List-II
(a) Diaphragms	(i) Inhibit ovulation and Implantation
(b) Contraceptive Pills	(ii) Increase phagocytosis of sperm within Uterus
(c) Intra uterine Devices	(iii) Absence of Menstrual cycle and ovulation following parturition
(d) Lactational Amenorrhea	(iv) They cover the cervix blocking the entry of sperms

Choose the correct answer from the options given below:

(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

(a)(iii), (b)-(ii), (c)-(i), (d)-(iv)

(a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)

(a)(iv), (b)(i), (c)-(ii), (d)-(iii)

None

94.

Which of the following is not a connective tissue?

Cartilage

Neuroglia

Adipose tissue

Blood

None

95.

. Which of the following is a correct match for disease and its symptoms?

Tetany high Ca level causing rapid spasms.

Arthritis - Inflammed joints

Muscular dystrophy An auto immune disorder causing progressive degeneration of skeletal muscle

Myasthenia gravis - Genetic disorder resulting in weakening and paralysis of skeletal muscle

None

96.

Which one of the following plants does not show plasticity?

Buttercup

Coriander

Cotton

Maize

None

97.

Given below are two statements:

Statement 1:

The primary CO acceptor in C₁ plants is phosphoenolpyruvate and is found in the mesophyll cells.

Statement II

Mesophyll cells of C, plants lack RuBisCo enzyme.

In the light of the above statements, choose the correct answer from the options given below

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Both Statement I and Statement II are correct

Statement I is incorrect but Statement II is correct

None

98.

Given below are two statements: one is labelled as

Assertion (A) and the other is labelled as Reason (R).

Assertion (A):

Osteoporosis is characterised by decreased bone mass and increased chances of fractures.

Reason (R):

Common cause of osteoporosis is increased levels of estrogen.

In the light of the above statements, choose the most appropriate answer from the options given below:

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

Both (A) and (R) are correct and (R) is the correct explanation of (A)

(A) is not correct but (R) is correct

(A) is correct but (R) is not correct

None

99.

Which of the following is not a method of ex situ conservation?

In vitro fertilization

Micropropagation

National Parks

Cryopreservation

None

1 out of 20

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