1.
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: |
2.
Lippe's loop is a type of contraceptive used as:
3.
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: |
4.
The flowers are Zygomorphic in:
| (a) Mustard |
| (b) Gulmohar |
| (c) Cassia |
| (d) Datura |
| (e) Chilly |
| Choose the correct answer from the options given below: |
5.
Which of the following statements with respect to Endoplasmic Reticulum is incorrect?
6.
Nitrogenous waste is excreted in the form of pellet or paste by:
7.
The device which can remove particulate matter present in the exhaust from a thermal power plant is:
8.
. Which of the following is not the function of conducting part of respiratory system?
9.
Which of the following statements is not true?
10.
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: |
11.
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 |
| (c) Gingely oil has lower melting point, hence remains as oil in winter |
| (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: |
12.
Which one of the following statement is not true regarding gel electrophoresis technique?
13.
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:
14.
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: |
15.
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 |
| (c) Meiosis occurs continuously in a mitotically dividing stem cell population |
| (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: |
16.
Hydrocolloid carrageen is obtained from:
17.
Identify the asexual reproductive structure associated with Penicillium:
18.
Which one of the following will accelerate phosphorus cycle?
19.
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: |
20.
At which stage of life the oogenesis process is initiated?
21.
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:
22.
Which one of the following statements is correct?
23.
Which of the following is a correct statement?
24.
Select the incorrect statement regarding synapses:
25.
In which of the following animals, digestive tract has additional chambers like crop and gizzard ?
26.
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?
27.
In gene therapy of Adenosine Deaminase (ADA) deficiency, the patient requires periodic infusion of genetically engineered lymphocytes because:
28.
Identify the microorganism which is responsible for the production of an immunosuppressive molecule cyclosporin A:
29.
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 |
| (c) Stem is flattened and fleshy in Opuntia and modified to perform the function of leaves |
| (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: |
30.
Tegmina in cockroach, arises from:
31.
Which one of the following never occurs during mitotic cell division?
32.
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: |
33.
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?
34.
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: |
35.
The appearance of recombination nodules on homologous characterizes: chromosomes during meiosis
36.
In the following palindromic base sequences of DNA, which one can be cut easily by particular restriction enzyme?
37.
A dehydration reaction links two glucose molecules to produce maltose. If the formula for glucose is C6H12O6 then what is the formula for maltose ?
38.
Identify the incorrect statement related to Pollination:
39.
Natural selection where more individuals acquire specific character value other than the mean character value, leads to:
40.
XO type of sex determination can be found in:
41.
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:
42.
Which of the following is not a method of ex situ conservation?
43.
Which one of the following statements cannot be connected to Predation?
44.
. 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?
45.
What is the net gain of ATP when each molecule of glucose is converted to two molecules of pyruvic acid?
46.
Which of the following are not the effects of Parathyroid hormone?
| (a) Stimulates the process of bone resorption |
| (b) Decreases Ca level in blood |
| (c) Reabsorption of Ca by renal tubules |
| (d) Decreases the absorption of Cat from digested food |
| (e) Increases metabolism of carbohydrates |
| Choose the most appropriate answer from the options given below: |
47.
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: |
48.
. Select the incorrect statement with reference to mitosis:
49.
Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for:
50.
The gaseous plant growth regulator is used in plants to:
51.
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 |
| (c) It is lighter in colour |
| (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: |
52.
Which part of the fruit, labelled in the given figure makes it a false fruit?
53.
Which of the following is not a desirable feature of a cloning vector?
54.
Read the following statements and choose the set of correct statements:
| (a) Euchromatin is loosely packed chromatin |
| (b) Heterochromatin is transcriptionally active |
| (c) Histone octomer is wrapped by negatively charged DNA in nucleosome |
| (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: |
55.
Which of the following is not observed during apoplastic pathway?
56.
Regarding Meiosis, which of the statements is incorrect?
57.
Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver_ml of O2 to the tissues.
58.
If the length of a DNA molecule is 1.1 metres, what will be the approximate number of base pairs?
59.
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:
60.
In the taxonomic categories which hierarchial arrangement in ascending order is correct in case of animals ?
61.
Detritivores breakdown detritus into smaller particles. This process is called:
62.
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:
63.
Select the incorrect statement with respect to acquired immunity.
64.
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: |
65.
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 |
66.
Exoskeleton of arthropods is composed of:
67.
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: |
68.
Which of the following occurs due to the presence of autosome linked dominant trait ?
69.
Which of the following is present between the adjacent bones of the vertebral column?
70.
Breeding crops with higher levels of vitamins and minerals or higher proteins and healthier fats is called:
71.
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: |
72.
DNA polymorphism forms the basis of:
73.
Which one of the following plants shows vexillary aestivation and diadelphous stamens?
74.
Which one of the following plants does not show plasticity?
75.
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: |
76.
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. |
| (c) Insulin used for treating Diabetes was extracted from Cattles and Pigs. |
| (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: |
77.
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 |
78.
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:
79.
The process of translation of mRNA to proteins begins as soon as:
80.
Transposons can be used during which one of the following?
81.
What is the role of large bundle shealth cells found around the vascular bundles in C, plants?
82.
. Which of the following is a correct match for disease and its symptoms?
83.
Which of the following is not a connective tissue?
84.
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: |
85.
Which of the following functions is not performed by secretions from salivary glands?
86.
Which of the following is incorrectly matched?
87.
"Girdling Experiment was performed by Plant Physiologists to identify the plant tissue through which:
88.
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:
89.
Which one of the following produces nitrogen fixing nodules on the roots of Alnus?
90.
In-situ conservation refers to
91.
Addition of more solutes in a given solution will:
92.
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:
93.
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 ?
94.
. 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?
95.
What amount of energy is released from glucose during lactic acid fermentation?
96.
. 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. |
| (c) deposition of suberin and aromatic substances in the outer layer 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: |
97.
. 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
98.
If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness?
99.
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:
