When the tRNA releases its amino acid, what happens? •The tRNA disintegrates.

•The tRNA remains bound to the mRNA until the entire protein is synthesized. At that point, all tRNA molecules are released simultaneously from the ribosome.

•The tRNA is released and exits the ribosome.

•The tRNA is transformed into mRNA so that the process of protein synthesis can continue at
an accelerated rate.

What is the number of phosphates in an atp molecule

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons