8. identify the genotypes and phenotypes of the offspring from each of the following crosses.
use t as the dominant trait and t as the recessive trait.
a. heterozygous parent x heterozygous parent
b. homozygous dominant parent x homozygous recessive parent
c. homozygous dominant parent x heterozygous parent
d. homozygous recessive porent x heterozygous parent

When does dna replication(make a copy of itself)?

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one