Multiple choice

Genes control a trait while __________ help in the expression of a trait.

  1. fats

  2. carbohydrates

  3. proteins

  4. vitamins

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Genes contain the genetic information (DNA), but proteins are the molecules that actually carry out cellular functions and express traits. Proteins include enzymes that catalyze reactions and structural proteins that build cellular components.