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Molecular Basis of Inheritance · Question 6

RE-NEET (UG) 2026MCQEasy📈 Topic in 75% papers+4−1
1

Which of the following enzymes synthesizes precursor mRNA?

  1. DNA polymerase
  2. RNA polymerase I
  3. RNA polymerase II
  4. RNA polymerase III

Answer

(3) RNA polymerase II

Solution

In eukaryotes, RNA polymerase II transcribes the precursor of mRNA, known as heterogeneous nuclear RNA (hnRNA).

Answer: (3)

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Keep practising — Molecular Basis of Inheritance

2

Which chromosome in the human genome has the highest number of genes?

  1. Chromosome 1
  2. Chromosome 10
  3. Chromosome X
  4. Chromosome Y
NEET (UG) 2025
3

Match List-I with List-II Choose the correct answer from the options given below:

  1. A-IV, B-III, C-I, D-II
  2. A-III, B-II, C-IV, D-I
  3. A-II, B-IV, C-I, D-III
  4. A-IV, B-II, C-I, D-III
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4

Which of the following are the post-transcriptional events in a eukaryotic cell? Choose the correct answer from the options given below :

  1. B, C, E only
  2. C, D, E only
  3. A, B, C only
  4. B, C, D only
NEET (UG) 2025
5

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

  1. Statement I is correct but statement II is incorrect
  2. Statement I is incorrect but statement II is correct
  3. Both statement I and statement II are correct
  4. Both statement I and statement II are incorrect
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6

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

  1. Statement I is correct but statement II is incorrect
  2. Statement I is incorrect but statement II is correct
  3. Both statement I and statement II are correct
  4. Both statement I and statement II are incorrect
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7

Who proposed that the genetic code for amino acids should be made up of three nucleotides?

  1. Jacques Monod
  2. Franklin Stahl
  3. George Gamow
  4. Francis Crick
NEET (UG) 2025
8

Histones are enriched with -

  1. Phenylalanine & Leucine
  2. Phenylalanine & Arginine
  3. Lysine & Arginine
  4. Leucine & Lysine
NEET (UG) 2025
9

Which factor is important for termination of transcription?

  1. (rho)
  2. (gamma)
  3. (alpha)
  4. (sigma)
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10

The lactose present in the growth medium of bacteria is transported to the cell by the action of

  1. Beta-galactosidase
  2. Acetylase
  3. Permease
  4. Polymerase
NEET (UG) 2024
11

A transcription unit in DNA is defined primarily by the three regions in DNA and these are with respect to upstream and down stream end;

  1. Repressor, Operator gene, Structural gene
  2. Structural gene, Transposons, Operator gene
  3. Inducer, Repressor, Structural gene
  4. Promoter, Structural gene, Terminator
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