MCQ
The mutations which prove fatal for the organism are called:
  • A
    Spontaneous
  • B
    Induced
  • C
    Deleterious
  • D
    Lethal

Answer

  1. Lethal

Explanation:

(1) Spontaneous mutations are the mutations that occur naturally (may arise from error in DNA replication or Spontaneous Deamination of 5-Methyl-cytosine)

(2) Induced mutations are the mutations that occurs due to external environmental causes or mutagens (such X-rays or UV radiations).

(3) Deleterious mutation is a genetic alteration that increases an individual's susceptibility or predisposition to a certain disease or disorder.

(4) Lethal mutation causes the death of an organism carrying the mutated genome.

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