The chromosomes in the illustration are
a) homozygous for alleles a and b.
b) heterozygous for alleles a and b.
c) heterozygous for allele a and homozygous for allele b.
d) homozygous for allele a and heterozygous for allele b.

it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.