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vova2212 [387]
4 years ago
15

Select which example are induced mutations.

Biology
1 answer:
rjkz [21]4 years ago
3 0

Answer:

The examples of induced mutations are:

a. Nitrous acid causes the deamination of adenine to hypoxanthine

d. Ionizing radiation causes chromosomal fragmentation

Explanation:

Induced mutations are done by breeders to produce crops with required or desirable traits.

Induced mutation through chemical means can be done by introducing chemical mutagens like nitrous acid. Generally, nitrous acid has the capability to deaminate the nitrogenous bases and also to replace its amino group by a keto group.

So when nitrous acid is added to:

  • Adenine, it converts to hypoxanthine
  • Cytosine, it converts to uracil
  • Guanine, it converts to xanthine

Ionizing radiations using gamma radiations is a type of spontaneous induced mutation which induces genetic variability by causing chromosomal fragmentation and instability.

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