Multiple choice

Which of the following mutations are not the point mutations?

  1. Silent mutations

  2. Missense mutation

  3. Loss-of-function mutations

  4. Nonsense mutation
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C Correct answer
Explanation

Loss-of-function mutations are the result of gene product having less or no function. When the allele has a complete loss of function (null allele) it is often called an amorphic mutation. Phenotypes associated with such mutations are most often recessive. It is not a point mutation.

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