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Home Questions 2GKKNZ5UPP
Target Exam

CUET

Subject

Biology

Chapter

Molecular Basis of Inheritance

Question:

Match List-I with List-II

List-1 List-II
Enzymes Functions
(A). DNA polymerase (I). Transcribes precursor of mRNA (hnRNA)
(B). DNA ligase (II). Transcribes rRNAs
(C). RNA polymerase I (III). Joins the DNA fragments
(D). RNA polymerase II (IV). Catalyzes the polymerization of deoxynucleotides

the correct answer from the options given below:

Options:

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

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

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

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

Correct Answer:

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

Explanation:

The correct answer is Option (2) → (A)- (IV), (B)-(III), (C) -(II), (D)- (I)

List-1 List-II
Enzymes Functions
(A). DNA polymerase (IV). Catalyzes the polymerization of deoxynucleotides 
(B). DNA ligase (III). Joins the DNA fragments
(C). RNA polymerase I (II). Transcribes rRNAs
(D). RNA polymerase II (I). Transcribes precursor of mRNA (hnRNA)

(A) In living cells, such as E. coli, the process of replication requires a set of catalysts (enzymes). The main enzyme is referred to as DNA-dependent DNA polymerase, since it uses a DNA template to catalyse the polymerisation of deoxynucleotides. These enzymes are highly efficient enzymes as they have to catalyse polymerisation of a large number of nucleotides in a very short time.

(B) DNA ligase is an enzyme that joins fragments of DNA by forming phosphodiester bonds between the 3'-hydroxyl and 5'-phosphate ends of DNA strands.

(C) The RNA polymerase I transcribes rRNAs (28S, 18S, and 5.8S).

(D) The RNA polymerase II transcribes precursor of mRNA, the heterogeneous nuclear RNA (hnRNA).

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