Two cats have different parents. One cat has stiff fur, and the other cat has soft fur. Why do the cats have different fur softnesses?
a
The cats have different versions of the gene for fur softness. The genes are softer in the fur
of one of the cats.
b
The cats have different versions of the gene for fur softness, which instruct for different
proteins that connect in different ways to make different kinds of fur.
С
Each cat has different fur softness because offspring from different parents will have
different fur softness.
d
Each cat has different traits for fur softness because they have different versions of the
gene for fur softness that connect together to make different kinds of fur.