Question

Two individuals are represented in each choice in Figure Q9-10; individual 1 is one of the parents of individual 2. The asterisk seen in each choice indicates the occurrence of a single mutation during the cell division. Which of the choices in Figure Q9-10 will lead to a mutation in every cell of the individual in which the original mutation occurred?

a. a
b. b
c. c
d. d

Answer 1

Choice c. cd will lead to a mutation in every cell of the individual in which the original mutation occurred.

Step-by-step explanation:

In order for a mutation to occur in every cell of an individual, the mutation must happen during cell division, and that mutation must be passed down to all subsequent generations of cells. In the given choices, only choice c. cd satisfies these criteria. Let's examine why:

In choice c. cd, there is a single mutation (indicated by the asterisk) that occurs during cell division in individual 2. This mutation is then passed down to all of individual 2's cells in subsequent cell divisions, therefore resulting in a mutation in every cell of that individual.