Multiple choice

Directions: Read the paragraph and answer the question that follows.

Very early in the study of genetics biologists began to pay particular attention to the aberrations now known as mutations; this investigation was initiated by de Vries at the turn of the century and brilliantly developed by Morgan and his school from 1910 on. A gene, by definition, is a living particle that reproduces itself, and nearly always it does so exactly. But occasionally, probably under the influence of some outside agent, it forms an imperfect copy of itself. If this altered gene is able to reproduce itself in its new form, the result is a mutation, which is evidenced in permanent change in some trait of the organism.

What according to you would succeed the passage?

  1. Mutation is the antithesis of heredity.

  2. Mutation is detrimental to the reproduction of gene.

  3. Mutation occurs when genes do not reproduce themselves.

  4. Mutation brings about a noxious change in the trait of an organism.

  5. This mutative trait becomes the hallmark of the species.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Heredity ensures the basic continuity of the organic form, whereas mutation creates a diversity of genes, under the influence of some external agent. Thus, mutation is the antithesis of heredity. Hence, (1) is the answer. 

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