Panspermia, an idea that is still a favorite for some astronomers, means:
1.  Creation of life from dead and decaying matter
2.  Creation of life from chemicals
3.  Origin of sperm in human testes
4.  Transfer of spores as a unit of life from other planets of Earth
Subtopic:  Origin of Life |
 88%
Level 1: 80%+
NEET - 2022
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Arrange the components of the mammary gland. (from proximal to distal)
(a) Mammary duct
(b) Lactiferous duct
(c) Alveoli
(d) Mammary ampulla
(e) Mammary tubules
Choose the most appropriate answer from the options given below :
1. (c) → (a) → (d) → (e) → (b)
2. (b) → (c) → (e) → (d) → (a)
3. (c) → (e) → (a) → (d) → (b)
4. (e) → (c) → (d) → (b) → (a)
Subtopic:  Mammary Gland & Lactation |
 73%
Level 2: 60%+
NEET - 2022
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Select the incorrect match regarding the symbols used in Pedigree analysis:
1. Sex unspecified
2. Affected individual
3. Consanguineous mating
4. Parent with male child affected with disease
Subtopic:  Pedigree Analysis: Basics |
 86%
Level 1: 80%+
NEET - 2022
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Why CNG is considered better fuel than diesel?
a. It cannot be adulterated
b. It takes less time to fill the fuel tank
c. It burns more efficiently
d. It is cheaper
e. It is less inflammable.
Choose the most appropriate answer from the options given below:
1. (a), (b), (c), (e) only
2. (a), (c), (d) only
3. (a), (b), (d), (e) only
4. (c), (d), (e) only
Subtopic:  Air Pollution |
 74%
Level 2: 60%+
NEET - 2022
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Which of the following methods is not used, commonly,  for introducing foreign DNA into the plant cell?
1. Agrobacterium mediated transformation
2. Gene gun
3. 'Disarmed pathogen' vectors
4. Bacteriophages
Subtopic:  Transforming Plant & Animal Cell |
 59%
Level 3: 35%-60%
NEET - 2022
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Identify the region of human brain which has pneumotaxic centre that alters respiratory rate by reducing the duration of inspiration.
1. Medulla 2. Pons
3. Thalamus 4. Cerebrum
Subtopic:  Respiratory System: Regulation of Respiration |
 84%
Level 1: 80%+
NEET - 2022
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How many secondary spermatocytes are required to form 400 million spermatozoa?
1. 50 million 2. 100 million
3. 200 million 4. 400 million
Subtopic:  Seminiferous Tubules & Spermatogenesis |
 63%
Level 2: 60%+
NEET - 2022
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Choose the correct statement about a muscular tissue:
1. Skeletal muscle fibres are uninucleated and found in parallel bundles.
2. Intercalated discs allow the cardiac muscle cells to contract as a unit.
3. The walls of blood vessels are made up of columnar epithelium.
4. Smooth muscles are multinucleated and involuntary
Subtopic:  Cardiac Muscle & Smooth Muscle |
 76%
Level 2: 60%+
NEET - 2022
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Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): FSH which interacts with membrane bound receptors does not enter the target cell.
Reason (R): Binding of FSH to its receptors generates second messenger (cyclic AMP) for its biochemical and physiological responses.
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.
Subtopic:  Mechanism of Hormone Action |
Level 4: Below 35%
NEET - 2022
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Which of the following animals has three chambered heart?
1. Scoliodon 2. Hippocampus
3. Chelone 4. Pteropus
Subtopic:  Study of Reptilia |
 79%
Level 2: 60%+
NEET - 2022
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