Question

Which situation allows for evolution during gene duplication?

A. Existing genes are copied over generations.
B. A mutation occurs in one copy of the original gene.
C. The original gene never duplicates.
D. The original gene performs the same role as the mutated gene.

Answer 1

the situation that allows for evolution during gene duplication is : B. a mutation occures in one copy of the original gene For example, its predicted that all organisms came from a single cell organism. But over hundreds of million of years, we undergone several mutation over and over again to the point where human became the most intelligent organism on earth

Answer 2

The right answer is B.

Mutations are not always unfavorable, they are often "indifferent" as to the survival of the cells or the individual.

Mutations are the primary source of variation in the genetic material underlying the evolution of living things. They can have a beneficial effect for the species.