Which term describes a type of trait that is usually expressed only when an organism has 2 identical alleles for the trait?
a. heterozygous < < < <
b. dominant
c. homozygous < < < <
d. recessive
im stuck between these 2.

The right type of trait is D. recessive.

The terms recessive and dominant are traits (or characters) that relate to alleles.

Homozygosity and heterozygosity characterize individuals. But in the question we are looking for a type of trait (so the answer should not be either of these two).

An allele is dominant if present on only one of the two homologous chromosomes (one of paternal origin, the other of maternal origin), it is capable of expressing a character. Thus it expresses its character that it is present on the two chromosomes of the pair or on only one. An allele is recessive if its expression requires its presence on both homologous chromosomes (in the homozygous state). A dominant allele masks the presence of a recessive allele (in the heterozygous or homozygous state).

yes it is   dangerous

explanation:

because that foot is discusting and could get you sick

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.