Botany-Gene Regulation
NEET Botany Gene Regulation Match the Following Question
Type: Match the Following-match the column-Hard-Class 12
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Inducer | (i) RNA polymerase binding site |
| (b) Repressor | (ii) Prevents transcription |
| (c) Operon | (iii) Structural genes |
| (d) Lactose | (iv) Substrate for enzyme |
A
a-i, b-ii, c-iii, d-iv
B
a-iv, b-ii, c-i, d-iii
C
a-ii, b-iii, c-iv, d-i
D
a-iii, b-iv, c-ii, d-i
Correct Answer
Option B
Detailed Explanation
The inducer, which in this case is lactose, serves as a substrate for the enzyme beta-galactosidase. The repressor binds to the operator and prevents RNA polymerase from transcribing the operon, which contains the structural genes needed for lactose metabolism.
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