A= pigment
a = albino
presence of pigment is completely dominant over absence of pigment. an individual heterozygous for pigment with an ab bloodtype mates with another individual that is heterozygous for pigment and has ab bloodtype. what are the phenotypes and frequencies of the progeny?

Here you have two characteristics to cross on Punnet square: Blood type and pigment.

They told you both parents are AB this means co-dominance of A and B, you draw the Punnett square (photo), and you'll see your offspring possibilities are 50% AB type, 25% A type, and 25% B type.

Now they told you both parents are homozygous for pigments this means Aa. When you draw the Punnett square (photo), you'll see your offspring possibilities are 50% Aa, 25% AA, and 25% aa.

75% pigmented and 25% albino.

i think it is dna, i'm not totally sure but i think it might be.

c. live where it’s cold and icy