NEET 2025 | NEET Year Wise Previous Years Questions

MCQ (Single Correct Answer)

Given below are two statements : One is labelled as Assertion (A) and other is labelled as Reason (R).

Assertion (A) : Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus.

Reason (R) : Presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells.

In light of the above statements, choose the most appropriate answer from the options given below:

A is true but $\mathbf{R}$ is false

$\mathbf{A}$ is false but $\mathbf{R}$ is true

Both $\mathbf{A}$ and $\mathbf{R}$ are true and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$

Both $\mathbf{A}$ and $\mathbf{R}$ are true but $\mathbf{R}$ is NOT the correct explanation of $\mathbf{A}$

MCQ (Single Correct Answer)

From the statements given below choose the correct option :

A. The eukaryotic ribosomes are 80S and prokaryotic ribosomes are 70S.

B. Each ribosome has two sub-units.

C. The two sub-units of 80 S ribosome are 60 S and 40 S while that of 70 S are 50 S and 30 S .

D. The two sub-units of 80 S ribosome are 60 S and 20 S and that of 70 S are 50 S and 20 S .

E. The two sub-units of 80 S are 60 S and 30 S and that of 70 S are 50 S and 30 S .

A, B, E are true

B, D, E are true

A, B, C are true

A, B, D are true

MCQ (Single Correct Answer)

Which one of the following enzymes contains 'Haem' as the prosthetic group?

Succinate dehydrogenase

Carbonic anhydrase

MCQ (Single Correct Answer)

What is the name of the blood vessel that carries deoxygenated blood from the body to the heart in a frog?

Pulmonary vein

Pulmonary artery