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Question

A molecule that can act as genetic material, must fulfill the traits given below, except


A

It should be able to express itself in the form of 'Mendelian characters'

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B

It should be unstable structurally and chemically

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C

It should be able to generate its replica

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D

It should provide the scope for slow changes that are required for evolution

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Solution

The correct option is B

It should be unstable structurally and chemically


The correct option is B.

Explanation of correct option:

  1. Any material of animal, plant, microbial, or other origins, which carries genetic information and that passes it from one generation to the next is known as genetic material.
  2. A genetic material should be chemically and structurally stable to maintain its integrity with the cell cycle, age, and distinct physiology of individuals.

Explanation of incorrect options:

Option A:

  1. A genetic material should carry the information needed for the regulation of entire cell functioning, and the information should be articulated as functional proteins.
  2. Thus, the genetic material should be able to articulate itself in the form of Mendelian characters.
  3. An inherited character under the control of a solitary locus is a Mendelian character.

Option C:

  1. For the inheritance of genetic material, its replication is needed with each cell division to make sure that it gets transmitted to the progeny.

Option D:

  1. A genetic material should be susceptible to random variations, which impart genetic variations and function as raw material for evolution.

Final answer: A genetic material should not be unstable structurally and chemically.


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