Fitness trade-off refers to selection favoring which genotype? a. heterozygous b. no genotype is favored c. homozygous recessive d. homozygous dominant

Procedure in pregnancy to have access to fetus. what do you call this procedure?

Tay-sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large, complex, undigested lipids. which cellular organelle must be involved in this condition?

Which two animals are most closely related? explain.