Match List-I with List-II
Choose the correct answer from the options given below :
| List-I | List-II |
| (a) Multipolar neuron | (i) Somatic neural system |
| (b) Bipolar neuron | (ii) Cerebral cortex |
| (c) Myelinated nerve fibre | (iii) Retina of Eye |
| (d) Unmyelinated nerve fibre | (iv) Spinal nerves |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (i) | (iv) | (ii) |
| 2. | (ii) | (iv) | (iii) | (i) |
| 3. | (ii) | (iii) | (i) | (iv) |
| 4. | (ii) | (iii) | (iv) | (i) |
Subtopic: Nervous System |
72%
Level 2: 60%+
NEET - 2022
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Excretion in cockroach is performed by all, EXCEPT :
| 1. | Urecose glands | 2. | Malpighian tubules |
| 3. | Fat body | 4. | Hepatic caeca |
Subtopic: Cockroach: Excretory System |
76%
Level 2: 60%+
NEET - 2022
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Select the correct statement regarding mutation theory of evolution.
| 1. | This theory was proposed by Alfred Wallace |
| 2. | Variations are small directional changes |
| 3. | Single step large mutation is a cause of speciation |
| 4. | Large differences due to mutations arise gradually in a population |
Subtopic: Theory of Evolution & Lamarckism |
79%
Level 2: 60%+
NEET - 2022
Hints
Arrange the following formed elements in the decreasing order of their abundance in blood in humans :
Choose the most appropriate answer from the options given below :
| (a) | Platelets |
| (b) | Neutrophils |
| (c) | Erythrocytes |
| (d) | Eosinophils |
| (e) | Monocytes |
Choose the most appropriate answer from the options given below :
| 1. | (c), (a), (b), (e), (d) | 2. | (c), (b), (a), (e), (d) |
| 3. | (d), (e), (b), (a), (c) | 4. | (a), (c), (b), (d), (e) |
Subtopic: Blood: White Blood Cells |
73%
Level 2: 60%+
NEET - 2022
Hints
In the enzyme which catalyses the breakdown of:
\(\mathrm{H}_2 \mathrm{O}_2 \rightarrow \mathrm{H}_2 \mathrm{O}+\mathrm{O}_2\)
the prosthetic group is:
\(\mathrm{H}_2 \mathrm{O}_2 \rightarrow \mathrm{H}_2 \mathrm{O}+\mathrm{O}_2\)
the prosthetic group is:
| 1. | Nicotinamide adenine dinucleotide | 2. | Haem |
| 3. | Zinc | 4. | Niacin |
Subtopic: Enzyme Cofactors |
74%
Level 2: 60%+
NEET - 2022
Hints
Select the correct statements.
Choose the most appropriate answer from the options given below :
| (a) | Angiotensin II activates the cortex of adrenal gland to release aldosterone. |
| (b) | Aldosterone leads to increase in blood pressure. |
| (c) | ANF acts as a check on renin-angiotensin mechanism. |
| (d) | ADH causes vasodilation. |
| (e) | Vasopressin is released from adenohypophysis. |
Choose the most appropriate answer from the options given below :
| 1. | (a), (b) and (e) only | 2. | (c), (d) and (e) only |
| 3. | (b), (c) and (d) only | 4. | (a), (b) and (c) only |
Subtopic: Autoregulation of GFR |
72%
Level 2: 60%+
NEET - 2022
Hints
With respect to metaphase, which of the following statements is incorrect ?
| 1. | Complete disintegration of nuclear envelope takes place |
| 2. | Chromosomes are highly condensed |
| 3. | Metaphase chromosomes are made up of four sister chromatids held together by centromere |
| 4. | Chromosomes lie at the equator of the cell |
Subtopic: Cell Division: Mitosis (Karyokinesis) |
73%
Level 2: 60%+
NEET - 2022
Hints
Select the incorrect statement with respect to inbreeding of animals.
| 1. | It is used for evolving pure lines in cattle. |
| 2. | It helps in accumulation of superior genes and elimination of less desirable genes. |
| 3. | It decreases homozygosity. |
| 4. | It exposes harmful recessive genes that are eliminated by selection |
82%
Level 1: 80%+
NEET - 2022
Hints
Match List-I with List-II
Choose the correct answer from the options given below:
| List-I | List-II | ||
| (a) | Cellular barrier | (i) | Interferons |
| (b) | Cytokine barrier | (ii) | Mucus |
| (c) | Physical barrier | (iii) | Neutrophils |
| (d) | Physiological barrier | (iv) | HCI in gastric juice |
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iii) | (iv) | (i) |
| 2. | (ii) | (iii) | (i) | (iv) |
| 3. | (iii) | (iv) | (ii) | (i) |
| 4. | (iii) | (i) | (ii) | (iv) |
Subtopic: Human Immune System |
88%
Level 1: 80%+
NEET - 2022
Hints
If A and C make 30% and 20% of DNA, respectively, what will be the percentage composition of T and G ?
| 1. | T : 20%, G : 30% | 2. | T : 30%, G : 20% |
| 3. | T : 30%, G : 30% | 4. | T : 20%, G : 20% |
Subtopic: The DNA |
83%
Level 1: 80%+
NEET - 2022
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