Question

Which of the following statements is TRUE regarding transgenic animals?

A: Their genome is composed of transgenes.
B: They contain genes from a plant.
C: All of their cells contain different genes.
D: All of their chromosomes contain the same foreign genes.
E: They are always mice.

Answer 1

Transgenic animals can be created in various species, not just mice, by introducing foreign genes through molecular cloning techniques. They allow for the expression of recombinant proteins that can be used in medicine.

Step-by-step explanation:

The correct statement regarding transgenic animals is option E: They are always mice. Transgenic animals are organisms that possess DNA from a different species, usually through molecular cloning techniques. They can be created in various animal species, including sheep, goats, chickens, and mice. The presence of foreign genes in transgenic animals allows for the expression of recombinant proteins that can be used in medicine, such as in the milk of transgenic sheep and goats or the eggs of chickens. Therefore, transgenic animals are not limited to being mice, contrary to option E.