Biology NEET Full Syllabus Mock Test 180 Questions New Syllabus Mock Test - 15 PCB Single Correct MCQ
Published on: August 13, 2026

Given below are two statements:

Statement I: A single human cell has approximately a two-meter-long thread of DNA distributed among its haploid set of chromosomes.
Statement II: The outer membrane of nucleus usually remains continuous with the endoplasmic reticulum and also bears ribosomes on it, but at a number of places the nuclear envelope is interrupted by minute pores, which are formed by the fusion of its two membranes.
In the light of the above statements, choose the most appropriate answer from the options given below.

A
Statement I is correct but Statement II is incorrect.
B
Statement I is incorrect but Statement II is correct.
C
Both Statement I and Statement II are correct.
D
Both Statement I and Statement II are incorrect.

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Text Solution

Verified by Experts
The correct answer is:
B

A single human cell has approximately a two-meter-long thread of DNA distributed among its diploid set of chromosomes.
The total length of DNA in a haploid set ( ) of human chromosomes would be about 1 metre.
In a diploid cell ( ), the total length is about 2 metres.

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