NEET 2025 | NEET Year Wise Previous Years Questions

MCQ (Single Correct Answer)

Which of the following are the post-transcriptional events in an eukaryotic cell?

A. Transport of pre-mRNA to cytoplasm prior to splicing.

B. Removal of introns and joining of exons.

C. Addition of methyl group at 5' end of hnRNA.

D. Addition of adenine residues at 3' end of hnRNA.

E. Base pairing of two complementary RNAs.

Choose the correct answer from the options given below :

B, C, E only

C, D, E only

A, B, C only

B, C, D only

MCQ (Single Correct Answer)

Polymerase chain reaction (PCR) amplifies DNA following the equation.

$2 \mathrm{~N}^2$

$\mathrm{N}^2$

MCQ (Single Correct Answer)

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

Assertion (A) : Both wind and water pollinated flowers are not very colourful and do not produce nectar.

Reason (R) : The flowers produce enormous amount of pollen grains in wind and water pollinated flowers.

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

$\mathbf{A}$ 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)

Epiphytes that are growing on a mango branch is an example of which of the following?

Commensalism