In fruit flies (drosophila melanogaster) grey body is dominant to black body and normal wings are dominant to vestigial wings. if a heterozygous grey fruit fly is mated with a black-bodied fruit fly, what proportion of the offspring would be black?
a. 0
b. 0.25
c. 0.5
d. 1

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

(me out over the last several centuries, scientists have made the following broad observations while investigating several branches of the life sciences: -the fossil record shows that different types of organisms have existed at different times in earth's history. -many organisms have similar body structures that seem to be adapted to different ways of living in their environment. -organisms of different species often share similarities in stages of embryonic development. -many species share genetic similarities, and almost all organisms use the same basic building blocks to construct proteins. -often, the extent of two species' similarities can be predicted from their geographic closeness to each other. -a great deal of change has been observed among species that have experienced strong selective pressures through many generations. scientists have carefully considered and rigorously tested the observations listed above. when scientists offer a of these observations, they are making 1.) testable explanation, deductive explanation 2.) scientific interference, scientific law

The punnett square predicts the ratio of genotypes in the offspring, based on the genotypes of the parents. in this cross, tallness (h) is dominant to shortness (h). based on the punnett square, what is the phenotype of the offspring? hh hh tall short