Multiple choice

After researching a lot, the geneticist concluded that the given specimen has undergone a mutatiom in which the original phenotype of an organism is restored. In which of the following mutations is the original phenotype of an organism is restored?

  1. Gain-of-function mutations

  2. Loss-of-function mutations

  3. Antimorphic mutations

  4. A back mutation

  5. Lethal mutations
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A back mutation or reversion is a point mutation that restores the original sequence and hence the original phenotype.

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