Dogs, like all species, carry many different genes on each of their chromosomes. The chromosomes that are inherited by the puppies do not always carry the same set of
alleles for these genes as the original matching chromosomes of their parents. This is
a result of
A
dominant alleles influencing recessive alleles.
B
crossing over during meiosis.
с
the independent assortment of homologous pairs of chromosomes
during meiosis.
O
O
D
the parent's cells are diploid, but their gametes are haploid.

How many major plates cover the earth

Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.

Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth. a) glacial terrain b) a dry and sandy plain c) mostly mountain ranges d) covered by warm, shallow seas