1. Natural selection where more individuals acquire specific character value other than the mean character value, leads to
(1) Disruptive change
(2) Random change
(3) Stabilising change
(4) Directional change
2. Given below are two statements :
Statement I : Mycoplasma can pass through less
than 1 micron filter size.
Statement I : Mycoplasma are bacteria with
cell wall.
In the light of the above statements, choose
the most appropriate answer from the options given below
(1) Statement I is correct but Statement II is
incorrect
(2) Statement I is incorrect but Statement II
is correct
(3) Both Statement I and Statement II is
correct
(4) Both Statement I and Statement II are
incorrect
3. A dehydration reaction links two glucose molecules to product maltose. If the formula for glucose is C6H12O6 then what is the formula of maltose?
(1) C12H22O11
(2) C12H24O11
(3) C12H20O10
(4) C12H24O12
4. Which of the following statements with
respect to Endoplasmic Reticulum is incorrect?
(1) In prokaryotes only RER are present
(2) SER are the sites for lipid synthesis
(3) RER has ribosomes attached to ER
(4) SER is devoid of ribosomes
5. Tegmina in cockroach, arises from
(1) Metathorax
(2) Prothorax and Mesothorax
(3) Prothorax
(4) Mesothorax
6. If the length of a DNA molecule is 1.1
metres, what will be the approximate number of base pairs?
(1) 3.3 × 106 bp
(2) 6.6 × 106 bp
(3) 3.3 × 109 bp
(4) 6.6 × 109 bp
7. Identify the asexual reproductive
structure associated with Penicillium :
(1) Gemmules
(2) Buds
(3) Zoospores
(4) Conidia
8. 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 option given below :
(1) (A) is correct but (R) is not correct
(2) (A) is not correct but (R) is correct
(3) Both (A) and (R) are correct and (R) is
the correct explanation of (A)
(4) Both (A) and (R) are correct but (R) is
not the correct explanation of (A)
9. Breeding crops with higher levels of
vitamins and minerals or higher proteins and healthier fats is called :
(1) Bio-fortification
(2) Bio-accumulation
(3) Bio-magnification
(4) Bio-remediation
10. Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver ________ ml of O2 to the tissues.
(1) 4 ml
(2) 10 ml
(3) 2 ml
(4) 5 ml
11. In which of the following animals,
digestive tract has additional chambers like crop and gizzard?
(1) Catla, Columba, Crocodilus
(2) Pavo,
Psittacula, Corvus
(3) Corvus, Columba, Chameleon
(4) Bufo,
Balaenoptera, Bangarus
12. Which of the following functions is not
performed by secretions from salivary glands?
(1) Lubrication of oral cavity
(2) Digestion of disaccharides
(3) Control bacterial population in mouth
(4) Digestion of complex carbohydrates
13. Nitrogenous waste is excreted in the form
of pellet or paste by :
(1) Hippocampus
(2) Pavo
(3) Ornithorhynchus
(4) Salamandra
14. 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?
(1) z, y, a genes will not be translated
(2) RNA polymerase will bind the promoter
region
(3) Only z gene will get transcribed
(4) z, y, a genes will be transcribed
15. Which of the following is present between
the adjacent bones of the vertebral column?
(1) Areolar tissue
(2) Smooth muscle
(3) Intercalated discs
(4) Cartilage
16. 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:
(1) Statement I is correct but Statement II is
incorrect
(2) Statement I is incorrect but Statement II
is correct
(3) Both Statement I and Statement II are
correct
(4) Both Statement I and Statement II are incorrect
17. Select the incorrect statement with
reference to mitosis:
(1) Chromosomes decondense at telophase
(2) Splitting of centromere occurs at anaphase
(3) All the chromosomes lie at the equator at
metaphase
(4) Spindle fibres attach to centromere of
chromosomes
18. Given below are two statements:
Statement I :
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 :
(1) Statement I is correct but Statement II is
incorrect
(2) Statement I is incorrect but Statement II
is correct
(3) Both Statement I and Statement II are
correct
(4) Both Statement I and Statement II are
incorrect
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 :
(1) Statement I is correct but Statement II is
incorrect
(2) Statement I is incorrect but Statement II
is correct
(3) Both Statement I and Statement II are
correct
(4) Both Statement I and Statement II are
incorrect
20. Identify the microorganism which is
responsible for the production of an immunosuppressive molecule
cyclosporin A :
(1) Aspergillus niger
(2) Streptococcus
cerevisiae
(3) Trichoderma polysporum
(4) Clostridium
butylicum
21. 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:
(1) (b), (d) and (e) only
(2) (b), (c) and (e)
only
(3) (c) and (e) only
(4) (b) and (c) only
22. In-situ conservation refers to:
(1) Conserve only endangered species
(2) Conserve only extinct species
(3) Protect and conserve the whole ecosystem
(4) Conserve only high-risk species
23. Lippe’s loop is a type of contraceptive
used as:
(1) Non-Medicated IUD
(2) Copper releasing IUD
(3) Cervical barrier
(4) Vault barrier
24. Which of the following is a correct match
for disease and its symptoms?
(1) Myasthenia gravis – Genetic disorder
resulting in weakening and paralysis of skeletal muscle
(2) Muscular dystrophy – An auto immune
disorder causing progressive degeneration of skeletal muscle
(3) Arthritis – Inflammed joints
(4) Tetany – High Ca2+ level causing rapid
spasms.
25. Which of the following is not the
function of conducting part of respiratory system?
(1) Temperature of inhaled air is brought to
body temperature
(2) Provides surface for diffusion of O2 and
CO2
(3) It clears inhaled air from foreign particles
(4) Inhaled air is humidified
Answers:
1. (4) Directional change
2. (1) Statement I is correct but Statement II is incorrect
3. (1) C12H22O11
4. (1) In prokaryotes only RER are present
5. (4) Mesothorax
6. (3) 3.3 × 109 bp
7. (4) Conidia
8. (3) Both (A) and (R) are correct and (R) is the correct explanation of (A)
9. (1) Bio-fortification
10. (4) 5 ml
11. (2) Pavo, Psittacula, Corvus
12. (2) Digestion of disaccharides
13. (2) Pavo
14. (1) z, y, a genes will not be translated
15. (4) Cartilage
16. (3) Both Statement I and Statement II are correct
17. (4) Spindle fibres attach to centromere of chromosomes
18. (1) Statement I is correct but Statement II is incorrect
19. (2) Statement I is incorrect but Statement II is correct
20. (3) Trichoderma polysporum
21. (2) (b), (c) and (e) only
22. (3) Protect and conserve the whole ecosystem
23. (1) Non-Medicated IUD
24. (3) Arthritis – Inflammed joints
25. (2) Provides surface for diffusion of O2 and CO2