Botany-DNA Structure
NEET Botany DNA Structure Match the Following Question
Type: Match the Following-match the column-Medium-Class 12
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Nucleosome | (i) DNA packaging unit |
| (b) 15 N isotope | (ii) Heavy DNA in experiments |
| (c) DNA length | (iii) Comparison with nuclear size |
| (d) Centrifugation | (iv) Separation technique used |
A
a-i, b-ii, c-iii, d-iv
B
a-ii, b-i, c-iv, d-iii
C
a-iii, b-iv, c-i, d-ii
D
a-iv, b-iii, c-ii, d-i
Correct Answer
Option A
Detailed Explanation
The nucleosome is a fundamental unit of DNA packaging, while the 15 N isotope was used to create heavy DNA in Meselson and Stahl's experiment. The comparison of DNA length with nuclear size highlights the challenge of DNA packaging, and centrifugation is indeed a technique used to separate materials based on density.
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