Which cell organelle is responsible for regulating biochemical activies? a.
the mitochondria

b.
the cytoplasm

c.
the cell membrane

d.
the nucleus

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes