A pea plant with round seeds (Rr) is crossbred with another pea plant with wrinkled seeds (rr). What is the probability of offspring having wrinkled seeds?

A. 0%
B. 25%
C. 50%
D. 75%
(THE ANSWER IS NOT A)

Dwarf galaxies are select one: a. relatively rare. b. not very bright c. mostly spiral shaped. d. none of these.

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Which blood cell spend most of their time in the lymphatic system?