Biology Test Paper Final Neet (UG) 2021

Welcome to your Biology Test Paper Final Neet (UG) 2021

Name Phone Number

A specific recognition sequence identified by endonucleases to make cuts at specific positions within the DNA is:

Okazaki sequences

Degenerate primer sequence

Poly(A) tail sequences

Palindromic Nucleotide sequences

None

Which one of the following belongs to the family Muscidae?

Fire fly

Grasshopper

Cockroach

House fly

None

Diadelphous stamens are found in

Pea

Citrus

China rose

China rose and citrus

None

Veneral diseases can spread through:

(a) Using sterile needles

(b) Transfusion of blood from infected person

(d) Kissing

(e) Inheritance

Choose the correct answer from the option given below

(b), (c) and (d) only

(b) and (c) only

(a) and (c) only

(a), (b) and (c) only

None

Match List-I with List-II.

List-l	List-ll
(a)Cristae	(1)Primary constriction in chromosome
(b)Thylakoids	(ii)Disc-shaped sacs in Golgi apparatus
(c)Centromere	(iii) Infoldings in mitochondria
(d) Cisternae	(iv) Flattened membranous sacs in stroma of plastids

Choose the correct answer from the options given below.

(a)

(b)

(c)

(d)

(i) (iv) (iii) (ii)

(ii) (iii) (iv) (i)

(iv) (iii) (ii) (i)

(iii) (iv) (i) (ii)

None

Which of the following statements is incorrect?

Both ATP and NADPH + H' are synthesized during non-cyclic photophosphorylation

Grana lamellae have both PS I and PS II

Cyclic photophosphorylation involves both PS I and PS II

Stroma lamellae have PS I only and lack NADP reductase

None

The organelles that are included in the endomembrane system are

Endoplasmic reticulum, Mitochondria, Ribosomes and Lysosomes

Golgi complex, Endoplasmic reticulum, Mitochondria and Lysosomes

Golgi complex, Mitochondria, Ribosomes and Lysosomes

Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles

None

Mutations in plant cells can be induced by:

Kinetin

Gamma rays

Infrared rays

Zeatin

None

Match the column-I with column-II

(iii) (iv) ((ii) (i)

(i) (iii) (iv) (i)

(iv) (ii) (i) (iii)

(i) (ii) (iii) (iv)

None

10.

Which of the following statements wrongly represents the nature of smooth muscle?

These muscles are present in the wall of blood vessels

They are involuntary muscles

Communication among the cells is performed by intercalated discs

These muscle have no striations

None

11.

Which of the following is not a step in Multiple Ovulation Embryo Transfer Technology (MOET)?

Cow is administered hormone having LH like activity for super ovulation

Fertilized eggs are transferred to surrogate mothers at 8-32 cell stage

Cow yields about 6-8 eggs at a time

Cow is fertilized by artificial insemination

None

12.

Plasmid pBR322 has Psti restriction enzyme site within gene amp that confers ampicillin resistance. If this enzyme is used for inserting a gene for B-galactoside production and the recombinant plasmid is inserted in an E.coli strain

It will lead to lysis of host cell

It will be able to produce a novel protein with dual ability

The transformed cells will have the ability to resist ampicillin as well as produce B-galactoside

It will not be able to confer ampicillin resistance to the host cell

None

13.

With regard to insulin choose correct options.

(a) C-peptide is not present in mature insulin.

(b) The insulin produced by rDNA technology has C-peptide.

(d) A-peptide and B-peptide of insulin are interconnected by disulphide bridges.

Choose the correct answer from the options given below

(a) and (d) only

(b) and (d) only

(b) and (c) only

(a), (c) and (d) only

None

14.

Dobson units are used to measure thickness of:

Troposphere

Stratosphere

CFCs

Ozone

None

15.

Match List-l with List-II

	Column-l		Column-ll
(a)	Protein	(i)	C = C double bonds
(b)	Unsaturated fatty acid	(ii)	Phosphodiester bonds
(c)	Nucleic acid	(iii)	Glycosidic bonds
(d)	Polysaccharide	(iv)	Peptide bonds

Choose the correct answer from options given below.

.(a) (b) (c) (d)

(iv) (i) (ii) (iii)

(i) (iv) (iii) (ii)

(ii) (i) (iV) (iii)

(iv) (iii) (i) (ii)

None

16.

Which of these is not an important component of initiation of parturition in humans ?

Release of Prolactin

Increase in estrogen and progesterone ratio

Release of Oxytocin

Synthesis of prostaglandins

None

17.

Match List I with List - II

	List-l		List-ll
(a)	Metamerism	(i)	Coelenterata
(b)	Canal system	(ii)	Ctenophora
(c)	Comb plates	(iii)	Annelida
(d)	Cnidoblasts	(iv)	Porifera

Choose the correct answer from options given below.

.(a) (b) (c) (d)

(iii) (iv) (i) (ii)

(iv) (i) (ii) (iii)

(iv) (iii) (i) (ii)

(iii) (iv) (ii) (i)

None

18.

Which of the following is not an application of PCR (Polymerase Chain Reaction)?

Detection of gene mutation

Purification of isolated protein

Gene amplification

Molecular diagnosis

None

19.

During the process of gene amplification using PCR, if very high temperature is not maintained in the beginning, then which of the following steps of PCR will be affected first?

Extension

Ligation

Annealing

Denaturation

None

20.

Match List-l with List-II

	Column-l		Column-ll
(a)	S phase	(i)	Proteins are synthesized
(b)	G₂phase	(ii)	Inactive phase
(c)	Quiescent stage	(iii)	Interval between mitosis and initiation of DNA replication
(d)	G₁phase	(iv)	DNA replication

Choose the correct answer from options given below.

.(a) (b) (c) (d)

(iii) (ii) (i) (iv)

(ii) (iv) (iii) (i)

(iv) (ii) (iii) (i)

(iv) (i) (ii) (iii)

None

21.

Which one of the following organisms bears hollow and pneumatic long bones?

Neophron

Hemidactylus

Omithorhynchus

Macropus

None

22.

Sphincter of oddi is present at

Junction of hepato-pancreatic duct and duodenum

Junction of jejunum and duodenum

Ileo-caecal junction

Gastro-oesophageal junction

None

23.

Which of the following is a correct sequence of steps in a PCR (Polymerase Chain Reaction)?

Extension, Denaturation, Annealing

Annealing, Denaturation, Extension

Denaturation, Extension, Annealing

Denaturation, Annealing, Extension

None

24.

Match List- with List-1

	List -I		List II
(a)	Scapula	(i)	Cartilaginous joints
(b)	Cranium	(ii)	Flat bone
(c)	Sternum	(iii)	Fibrous joints
(d)	Vertebral column	(iv)	Triangular flat bone

Choose the correct answer from the options given below

(a) (b) (c) (d)

(ii) (ii) (iv) (i)

(i) (iii) (ii) (iv)

(iv) (ii) (iii) (i)

(iv) (iii) (ii) (i)

None

25.

. Assertion (A): A person goes to high altitude and experiences 'altitude sickness' with symptoms like breathing difficulty and heart palpitations.

Reason (R): Due to low atmospheric pressure at high altitude, the body does not get sufficient oxygen.

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

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

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

(A) is false but (R) is true

(A) is true but (R) is false

None

26.

When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as:

Metacentric

Sub-metacentric

Acrocentric

Telocentric

None

27.

Match List- with List-1

	List-l		List-ll
(a)	Aspergillus ) niger	(i)	Acetic Acid
(b)	Acetobacter aceti	(ii)	Lactic Acid
(c)	Clostridium butylicum	(iii)	Citric Acid
(d)	Lactobacillus	(iv)	Butyric Acid

Choose the correct answer from options given below.

.(a) (b) (c) (d)

(ii) (iii) (i) (iv)

(i) (ii) (iii) (iv)

(iv) (ii) (i) (iii)

(iii) (i) (iv) (ii)

None

28.

Match List-l with List-II

List-l	List-ll
(a)Protoplast fusion	(i) Totipotency
(b)Plant tissue culture	(ii) Pomato
(c) Meristem culture	(iii) Somaclones
(d) Micropropagation	(iv) Virus free plants

Choose the correct answer from the options given below.

(a)

(b)

(c)

(d)

(1) (iii) (iv) (i) (ii)

(1) (iv) (iii) (ii) (i)

(1) (iii) (iv) (ii) (i)

(1) (ii) (i) (iv) (iii)

None

29.

Match Column with Column-II

	Column-l		Column-ll
(a)	Nitrococcus	(i)	Denitrification
(b)	Rhizobium	(ii)	Conversion of ammonia to nitrite
(c)	Thiobacillus	(iii)	Conversion of nitrite to nitrate
(d)	Nitrobacter	(iv)	Conversion of atmospheric nitrogen to ammonia

Choose the correct answer from options given below.

(a) (b) (c) (d)

(iv) (iii) (ii) (i)

(i) (iv) (i) (iii)

(iii) (i) (iv) (ii)

(i) (ii) (iii) (iv)

None

30.

Match List-l with List - II

	List -I		List II
(a)	Allen's Rule	(i)	Kangaroo rat
(b)	Physiological adaptation	(ii)	Desert lizard
(c)	Behavioural adaptation	(iii)	Marine fish at depth
(d)	Biochemical adaptation	(iv)	Polar seal

Choose the correct answer from the options given below

(iv) (i) (iii) (ii)

(iv) (ii) (iii) (i)

(iv) (iii) (ii) (i)

(iv) (i) (ii) (iii)

None

31.

Match List-I with List II

	List -I		List II
(a)	Adaptive radiation	(i)	Selection of resistant varieties due to excessive use of herbicides and pesticides
(b)	Convergent evolution	(ii)	Bones of forelimbs in Man and Whale
(c)	Divergent evolution	(iii)	Wings of Butterfly and Bird
(d)	Evolution by anthropogenic action	(iv)	Darwin Finches

Choose the correct answer from the options given below.

(a) (b) (c) (d)

(i) (iv) (iii) (ii)

(iii) (ii) (i) (iv)

(iv) (iii) (ii) (i)

(ii) (i) (iv) (iii)

None

32.

The amount of nutrients, such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is referred as:

Standing crop

Standing state

Climax community

Climax

None

33.

The factor that leads to Founder effect in a population is:

Genetic drift

Genetic recombination

Natural selection

Mutation

None

34.

. Match the following:

	List-l		List-ll
(a)	Physalia	(i)	Pearl oyster
(b)	Limulus	(ii)	Portuguese Man of War
(c)	Ancylostoma	(iii)	Living fossil
(d)	(d) Pinctada	(iv)	Hookworm

Choose the correct answer from the options given below,

(a) (b) (c) (d)

(i) (iv) (iii) (ii)

(ii) (iii) (i) (iv)

(ii) (iii) (iv) (i)

(iv) (i) (iii) (ii)

None

35.

The site of perception of light in plants during photoperiodism is

Stem

Shoot apex

Leaf

Axillary bud

None

36.

The centriole undergoes duplication during

Prophase

S-phase

Metaphase

G₂ phase

None

37.

The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at G. phase is 8, what would be the number of chromosomes after S phase?

None

38.

Succus entericus is referred to as:

Pancreatic juice

Intestinal juice

Gastric juice

Chyme

None

39.

Read the following statements

(a) Metagenesis is observed in Helminths.

(b) Echinoderms are triploblastic and coelomate animals

(d) Comb plates present in ctenophores help in digestion

(e) Water vascular system is characteristic of Echinoderms.

Choose the correct answer from the option given below

(c), (d) and (e) are correct

(a), (b) and (c) are correct

(a), (d) and (e) are correct

(b), (c) and (e) are correct

None

40.

The production of gametes by the parents, formation of zygotes,

the F₁ and F₂ plants, can be understood from a diagram called:

Punch square

Net square

Punnett square

Bullet square

None

41.

During muscular contraction which of the following events occur?

(a) 'H' zone disappears

(b) 'A' band widens

(d) Myosine hydrolyzes ATP, releasing the ADP and Pi.

(e) Z-lines attached to actins are pulled inwards.

Choose the correct answer from the options given below:

(a), (c), (d), (e) only

(b), (d), (e), (a) only

(a), (b), (c), (d) only

(b), (c), (d), (e) only

None

42.

What is the role of RNA polymerase III in the process of transcription in eukaryotes?

Transcribes rRNAs (28S, 18S and 5.8S)

Transcribes only siRNAs

Transcribes precursor of mRNA

Transcribes tRNA, 5s rRNA and snRNA

None

43.

Which is the "Only enzyme" that has "Capability" to catalyse Initiation, Elongation and Termination in the process of transcription in prokaryotes?

DNA Ligase

DNA dependent DNA polymerase

DNA dependent RNA polymerase

DNase

None

44.

Match List-l with List-II.

List-l	List-ll
(a) Lenticels	(i) Phellogen
(b) Cork cambium	(ii) Suberin deposition.
(c) Secondary cortex	(iii) Exchange of gases
(d) Cork	(iv) Phelloderm

Choose the correct answer from the options given below.

(a)

(b)

(c)

(d)

(iv) (i) (iii) (ii)

(ii) (iii) (iv) (i)

(iv) (ii) (i) (iii)

(ii) (i) (iv) (ii)

None

45.

Inspite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?

Resource partitioning

Predation

Mutualism

Competitive release

None

46.

. Which of the following statements is correct?

Fusion of protoplasms between two motile on non-motile gametes is called plasmogamy

Organisms that depend on living plants are called saprophytes

Fusion of two cells is called Karyogamy

Some of the organisms can fix atmospheric nitrogen in specialized cells called sheath cells

None

47.

Following are the statements about prostomium of earthworm

(a) It serves as a covering for mouth.

(b) It helps to open cracks in the soil into which it can crawl.

(d) It is the first body segment.

Choose the correct answer from the options given below.

(a), (b) and (c) are correct

(a), (b) and (d) are correct

(b) and (c) are correct

(a), (b), (c) and (d) are correct

None

48.

Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?

Epinephrine

Renin

Thrombin

Thrombokinase

None

49.

Select the correct pair.

Large colorless empty cells in the epidermis of grass leaves - Subsidiary cells

Loose parenchyma cells rupturing the epidermis and forming a lens shaped opening in bark - Spongy parenchyma

In dicot leaves, vascular bundles are surrounded by large thick-walled cells - Conjunctive tissue

Cells of medullary rays that form part of cambial ring - Interfascicular cambium

None

50.

The plant hormone used to destroy weeds in a field

NAA

2,4-D

IAA

IBA

None

51.

Match List-l with List-II.

	List -I		List II
(a)	Vaults	(i)	Entry of sperm through Cervix is blocked
(b)	IUDs	(ii)	Removal of Vas deferens
(c)	Vasectomy	(iii)	Phagocytosis of sperms within the Uterus
(d)	Tubectomy	(iv)	Removal of fallopian tube

Choose the correct answer from the option given below

(a) (b) (c) (d)

(iii) (i) (iv) (ii)

(i) (iii) (ii) Iv)

(ii) (iv) (iii) (i)

(iv) (ii) (i) (iii)

None

52.

Chronic auto immune disorder affecting neuro muscular junction leading to fatigue, weakening and paralysis of skeletal muscle is called as:

Arthritis

Gout

Myasthenia gravis

Muscular dystrophy

None

53.

Which stage of meiotic prophase shows terminalisation of chiasmata as its distinctive feature?

Zygotene

Diakinesis

Leptotene

Pachytene

None

54.

Which of the following algae produce Carrageen?

Brown algae

Blue-green algae

Green algae

Red algae

None

55.

Identify the incorrect pair

Lectins Concanavalin A

Toxin Abrin

Alkaloids Codeine

Drugs Ricin

None

56.

Which of the following algae contains mannitol as reserve food material?

Ulothrix

Gracilaria

Volvox

Ectocarpus

None

57.

Receptors for sperm binding in mammals are present on:

Corona radiata

Perivitelline space

Zona pellucida

Vitelline membrane

None

58.

Erythropoietin hormone which stimulates R.B.C. formation is produced by:

The cells of bone marrow

The cells of rostral adenohypophysis

Juxtaglomerular cells of the kidney

Alpha cells of pancreas

None

59.

For effective treatment of the disease, early diagnosis and understanding its pathophysiology is very important. Which of the following molecular diagnostic techniques is very useful for early detection?

Western Blotting Technique

ELISA Technique

Hybridization Technique

Southern Blotting Technique

None

60.

Statement I: The codon 'AUG' codes for methionine and phenylalanine.

Statement II: 'AAA' and 'AAG' both codons code for the amino acid lysine.

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

Statement is correct but Statement Il is false

Both Statement I and Statement II are false

Statement I is incorrect but Statement II is true

Both Statement I and Statement II are true

None

61.

The partial pressures (in mm Hg) of oxygen (O₂) and carbon dioxide (CO₂) at alveoli (the site of diffusion) are:

pO₂= 40 and pCO₂ = 45

pO₂= 159 and pCO₂ = 0.3

pO₂= 95 and pCO₂ = 40

pO₂= 104 and pCO₂ = 40

None

62.

Which of the following secretes the hormone, relaxin, during the later phase of pregnancy?

Corpus luteum

Uterus

Foetus

Graafian follicle

None

63.

Which of the following stages of meiosis involves division of centromere?

Metaphase I

Anaphase II

Telophase II

Metaphase II

None

64.

In some members of which of the following pairs of families, pollen grains retain their viability for months after release?

Poaceae Leguminosae

Rosaceae: Leguminosae

Poaceae: Solanaceae

Poaceae: Rosaceae

None

65.

In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be diseased?

100%

25%

50%

75%

None

66.

Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as:

Homosorus

Heterosporous

Heterosorus

Homosporous

None

67.

Match List-l with List-II.

List-l

List-ll

(a) Cells with active cell division capacity

(i) Vascular tissues

(b) Tissue having all cells similar in

structure and function

(ii) Meristematic tissue

(iii) Sclereids

(d) Dead cells with highly thickened walls and narrow lumen

iv) Simple tissue

Select the correct answer from the options given below.

(a)

(b)

(c)

(d)

(iii) (ii) (iv) (i)

(ii) (IV) (i) (iii)

(iv) (iii) (ii) (i)

(i) (ii) (iii) (IV)

None

68.

Following are the statements with reference to 'lipids'

(a) Lipids having only single bonds are called unsaturated fatty acids

(b) Lecithin is a phospholipid

(d) Palmitic acid has 20 carbon atoms including carboxyl carbon.

(e) Arachidonic acid has 16 carbon atoms.

Choose the correct answer from the options given below.

(b) and (c) only

(b) and (e) only

(a) and (b) only

None

69.

Match List-l with List-II.

List-l	List-ll
(a) Cohesion	(i) More attraction in liquid phase
(b) Adhesion	(ii) Mutual attraction among water molecules
(c)Surface tension	(iii) Water loss in liquid phase
(d)Guttation	(iv) Attraction towards polar surfaces

Choose the correct answer from the options given below.

(a)

(b)

(c)

(d)

(iv) (iii) (ii) (i)

(ii) (i) (iv) (iii)

(ii) (iv) (i) (iii)

(iii) (i) (iv) (ii)

None

70.

Which of the following are not secondary metabolites in plants?

Rubber, gums

Vinblastin, curcumin

Morphine, codeine

Amino acids, glucose

None

71.

During the purification process for recombinant DNA technology, addition of chilled ethanol precipitates out:

Polysaccharides

RNA

Histones

DNA

None

72.

Complete the flow chart on central dogma

(a)-Replication; (b)-Transcription; (c)-Translation;(d)-Protein

(a)-Translation; (b)-Replication;(c)-Transcription;(d)-Transduction

(a)-Transduction; (b)-Translation; (c)-Replication;(d)-Protein

(a)-Replication, (b)-Transcription;(c)-Transduction; (d)-Protein

None

73.

Match List-l with List-II

	List -I		List II
(a)	Filariasis	(i)	Haemophilus influenzae
(b)	Amoebiasis	(ii)	Trichophyton
(c)	Pneumonia	(iii)	Wuchereria bancrofti
(d)	Ringworm	(iv)	histolytica Entamoeba

Choose the correct answer from the options given below

(a) (b) (c) (d)

(ii) (iii) (i) (iv)

(iv) (i) (iii) (ii)

(i) (ii) (iv) (iii)

(iii) (iv) (i) (ii)

None

74.

In the equation GPP-R = NPP R represents:

Respiration losses

Retardation factor

Radiant energy

Environmental factor

None

75.

When gene targetting involving gene amplification is attempted in an individual's tissue to treat disease, it is known as:

Gene therapy

Biopiracy

Safety testing

Molecular diagnosis

None

76.

. Which of the following RNAs is not required for the synthesis of protein?

RNA

siRNA

mRNA

IRNA

None

77.

Amensalism can be represented as:

Species A (-): Species B (0)

Species A (+); Species B (0)

Species A (-); Species B (-)

Species A (+); Species B (+)

None

78.

Which one of the following statements about Histones is wrong?

Histones carry positive charge in the side chain

Histones are rich in amino acids Lysine and Arginine

The pH of histones is slightly acidic

Histones are organized to form a unit of 8 molecules

None

79.

A typical angiosperm embryo sac at maturity is:

7-nucleate and 8-celled

7-nucleate and 7-celled

8-nucleate and 8-celled

8-nucleate and 7-celled

None

80.

Which of the following is an incorrect statement?

The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm

Microbodies are present both in plant and animal cells

Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm

Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles

None

81.

. Identify the types of cell junctions that help to stop the leakage of the substances across a tissue and facilitation of communication with neighbouring cells via rapid transfer of ions and molecules.

Tight junctions and Gap junctions, respectively

Gap junctions and Adhering junctions. respectively

Adhering junctions and Gap junctions, respectively

Adhering junctions and Tight junctions, respectively

None

82.

Which of the following statements is incorrect?

Oxidation-reducation reactions produce proton gradient in respiration

During aerobic respiration, role of oxygen is limited to the terminal stage

ATP is synthesized through complex V

In ETC (Electron Transport Chain), one molecule of NADH + H gives rise to 2 ATP molecules, and one FADH, gives rise to 3 ATP molecules

None

83.

Identify the correct statement

Split gene arrangement is characteristic of prokaryotes

In capping, methyl guanosine triphosphate is added to the 3' end of hnRNA

The coding strand in a transcription unit is copied to an mRNA

RNA polymerase binds with Rho factor to terminate the process of transcription in bacteria

None

84.

Which of the following plants is monoecious?

Marchantia polymorpha

Carica papaya

Cycas circinalis

Chara

None

85.

Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.

High pO₂low pCO₂, less H⁺, lower temperature

Low pO₂ high pCO₂, more H⁺, higher temperature

Low pO₂low pCO₂, more H⁺, higher temperature

High pO₂high pCO₂, less H⁺, higher temperature

None

86.

The Adenosine deaminase deficiency results into

Parkinson's disease

Dysfunction of Immune system

Addison's disease

Digestive disorder

None

87.

Which one of the following is an example of Hormone releasing IUD?

Cu 7

CUT

LNG 20

Multiload 375

None

88.

DNA fingerprinting involves identifying differences in some specific regions in DNA sequence, called as

Single nucleotides

Satellite DNA

Polymorphic DNA

Repetitive DNA

None

89.

DNA strands on a gel stained with ethidium bromide when viewed under UV radiation, appear as

Bright orange bands

Bright blue bands

Dark red bands

Yellow bands

None

90.

If Adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it?

T: 20G: 20; C: 30

T: 20 G:30; C: 20

T: 30G: 20; C: 20

T:20G: 25: C: 25

None

91.

Now a days it is possible to detect the mutated gene causing cancer by allowing radioactive probe to hybridise its complimentary DNA in a clone of cells, followed by its detection using autoradiography because:

mutated gene does not appear on photographic film as the probe has complementarity with it

mutated gene does not appear on a photographic film as the probe has no complementarity with it

mutated gene completely and clearly appears on a photographic film

mutated gene partially appears on a photographic film

None

92.

Which of the following statements is not correct?

Pyramid of numbers in a grassland ecosystem is upright.

Pyramid of biomass in sea is generally inverted.

Pyramid of energy is always upright.

Pyramid of biomass in sea is generally upright.

None

93.

The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which, during pollination, brings genetically different types of pollen grains to stigma, is:

Chasmogamy

Geitonogamy

Xenogamy

Cleistogamy

None

94.

Persons with 'AB' blood group are called as "Universal recipients". This is due to:

Presence of antibodies, anti-A and anti-B, on RBCs

Absence of antigens A and B on the surface of RBCs

Absence of antibodies, anti-A and anti-B, in plasma

Absence of antigens A and B in plasma

None

95.

The first stable product of CO₂ fixation in Sorghum is

Pyruvic acid

Oxaloacetic acid

Phosphoglyceric acid

Succinic acid

None

96.

Which of the following is not an objective of Biofortification in crops?

Improve resistance to diseases

Improve protein content

Improve micronutrient and mineral content

Improve vitamin content

None

97.

. Gemmae are present in

Some Liverworts

Some Gymnosperms

Mosses

Pteridophytes

None

98.

Which of the following characteristics is incorrect with respect to cockroach?

Hypopharynx lies within the cavity enclosed by the mouth parts

In females, 7th-9th sterna together form a genital pouch

10th abdominal segment in both sexes, bears a pair of anal cerci

A ring of gastric caeca is present at the junction of midgut and hind gut

None

99.

In the exponential growth equation N, Noe, e represents

The base of number logarithms

The base of geometric logarithms

The base of exponential logarithms

The base of natural logarithms

None

100.

Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called

Elasticity

Plasticity

Maturity

Flexibility

None

1 out of 20

Time's up