Question

question 20 of 25
a point mutation occurs in a sex cell of an adult rabbit. the gene affected by
the mutation is responsible for proteins that build heart muscles. which
describes the most likely effect of this mutation?
a. the rabbits offspring will not survive.
b. the rabbit will not develop a healthy heart.
c. the rabbit will not be able to live much longer.
d. the rabbits offspring will have healthy hearts.

Explanation:

A point mutation in a sex - cell (gamete) affects the genetic material passed to offspring. Since the gene is for proteins that build heart muscles, a mutation here is likely to be lethal for the offspring as proper heart - muscle - building proteins are crucial for survival. Option B is incorrect as the mutation is in a sex - cell, not the somatic cells of the adult rabbit affecting its own heart development. Option C is about the adult rabbit's heart, but the mutation is in a sex - cell (not relevant to the adult's current heart). Option D is wrong because the mutation is in a sex - cell and affects offspring, not the adult rabbit's lifespan.

Answer:

A. The rabbit's offspring will not survive.