Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 2 PCB Single Correct MCQ
Published on: August 12, 2026

Mapping of human chromosomes:

A
has been restricted to sex chromosomes due to small family sizes
B
is based on DNA polymorphism
C
has determined that the number of linkage group is about twice the number of chromosomes
D
has determined that almost whole DNA is involved in the coding of genes

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The correct answer is:
B

As polymorphism in DNA sequence is the basis of genetic mapping of human genome as well as of DNA fingerprinting, it is essential that we understand what DNA polymorphism means in simple terms.

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