1
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

$$ \text { Match List I with List II: } $$

$$
\text { List I  }
$$
$$
\text { List II }
$$
A. Molluscs I. Pulmonary respiration only
B. Reptiles II. Branchial respiration
C. Adult amphibians III. Cellular respiration
D. Amoeba IV. Pulmonary and cutaneous respiration
Choose the correct answer from the options given below:
A

A-II, B-I, C-IV, D-III

B

A-I, B-II, C-IV, D-III

C

A-II, B-I, C-III, D-IV

D

A-III, B-II, C-I, D-IV

2
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

The sixth mutant codon of beta globin gene causing polymerization of Haemoglobin and change in RBC shape is $\_\_\_\_$

A

GUG

B

AUG

C

GAG

D

CAG

3
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Choose the correct statements regarding muscle contraction.

A. A motor neuron carries a signal sent by the Central Nervous System (CNS) to the sarcolemma of the muscle fibre.

B. The neural signal generates an action potential which causes the release of $\mathrm{Ca}^{++}$into sarcoplasm.

C. Increase in $\mathrm{Ca}^{++}$inactivates the actin for breaking cross bridges.

D. Actin binds to the myosin head to form a cross bridge.

E. Shortening of sarcomere takes place, by pulling actin filaments towards the centre of ' A ' band.

Choose the correct answer from the options given below :

A

C and D only

B

A and B only

C

C and E only

D

A, B, D and E only

4
NEET 2026
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following statements are correct with reference to human endoskeleton?

A. Human skull is monocondylic.

B. The joint between any two adjoining vertebrae is a cartilaginous joint.

C. In human beings, the number of cervical vertebrae is seven.

D. All ribs except the last 2 pairs are bicephalic.

E. The occipital bone of skull is articulated with atlas vertebra.

Choose the correct answer from the options given below:

A

B and E only

B

B, C and E only

C

C, D and E only

D

A, B and D only