In cows, the allele for red hair is HR and the allele for white hair is HW. In chickens, the allele for black feathers is FB and the allele for white feathers is FW. For the following
individuals, which show co-dominance, write the appropriate genotypes:
a. a red cow
b. a roan cow
c. a white bull
d. a white chicken
e. a black chicken
f. a speckled chicken

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

Match each medication with its description.

Suppose a particular species of tulip plant has three alleles for the gene that codes for flower color. the cr allele produces red tulips, the cp allele produces purple tulips, and the cw allele produces white tulips. cr is dominant over cp and cw, and cp is dominant over cw. for each of the following crosses, determine the expected ratio of offspring for each flower color. cr cp x cp cw cr cw x cp cw 1 red: 1 purple : 0 white, 1 red: 2 purple: 1 white, 2 red: 1 purple 1 white, 1 red: 3 purple : 0 white, 2 red: 0 purple : 2 white, 2 red: 2 purple : 0 white