Question

What is TRUE about genes?

A.
They are outside the nucleus of a cell.
B.
They are the same for humans and chimps.
C.
They are made up of chromosomes.
D.
They determine a person’s hair color.

Answer 1

They determine a person’s hair color.

Step-by-step explanation:

Genetic factors appear to play a major role in determining hair texture—straight, wavy, or curly—and the thickness of individual strands of hair. Studies suggest that different genes influence hair texture and thickness in people of different ethnic backgrounds.

Answer 2

D

Step-by-step explanation:

The type and amount of melanin in hair is determined by many genes, although little is known about most of them. The best-studied hair-color gene in humans is called MC1R. This gene provides instructions for making a protein called the melanocortin 1 receptor, which is involved in the pathway that produces melanin.