Please help due tomorrow ! which one a, b , c or d ?

Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.

Which characteristics are typical of a human population in the postindustrial stage?

What are the proteins in connectivity tissues of your foot examples of?