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NEET Biology 2022 PYQs
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100 questions in NEET 2022
Identify the microorganism which is responsible for
the production of an immunosuppressive molecule
cyclosporin A:
A
Clostridium butylicum
B
Aspergillus niger
C
Streptococcus cerevisiae
D
Trichoderma polysporum
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In-situ conservation refers to:
A
Conserve only high risk species
B
Conserve only endangered species
C
Conserve only extinct species
D
Protect and conserve the whole ecosystem
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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.
A
Both Statement I and Statement II are
incorrect
B
Statement I is correct but Statement II is
incorrect
C
Statement I is incorrect but Statement II is
correct
D
Both Statement I and Statement II are correct
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If '8' Drosophila in a laboratory population of '80' died during a week, the death rate in the population is ___________ individuals per Drosophila per week.
A
10
B
1.0
C
zero
D
0.1
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Detritivores breakdown detritus into smaller
particles. This process is called:
A
Fragmentation
B
Humification
C
Decomposition
D
Catabolism
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A
Bacteria are exclusively heterotrophic organisms.
B
Slime moulds are saprophytic organisms classified under Kingdom Monera.
C
Mycoplasma have DNA, Ribosome and cell wall
D
Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.
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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
A-I, B-II, C-III, D-IV
B
A-II, B-I, C-IV, D-III
C
A-III, B-IV, C-II, D-I
D
A-IV, B-III, C-I, D-II
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Match List-I with List-II.
List-I (Biological Molecules)
List-II (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
A-IV, B-II, C-I, D-III
B
A-II, B-IV, C-III, D-I
C
A-IV, B-III, C-I, D-II
D
A-III, B-II, C-IV, D-I
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Which one of the following statements is correct?
A
The tricuspid and the bicuspid valves open due
to the pressure exerted by the simultaneous contraction of the atria
B
Blood moves freely from atrium to the ventricle
during joint diastole.
C
Increased ventricular pressure causes closing of
the semilunar valves.
D
The atrio-ventricular node (AVN) generates an
action potential to stimulate atrial contraction
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Select the incorrect statement regarding synapses:
A
Electrical current can flow directly from one
neuron into the other across the electrical synapse.
B
Chemical synapses use neurotransmitters
C
Impulse transmission across a chemical synapse
is always faster than that across an electrical
synapse.
D
The membranes of presynaptic and postsynaptic
neurons are in close proximity in an electrical
synapse.
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