In rats, black eyes (B) are dominant to red eyes (b). If a rat that is heterozygous for eye color is crossed with a red-eyed rat, what will the phenotype ratio of their offspring be?

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

How is transcription similar to translation in terms of base pairing?

What is the primary function of the nervous system?