The evolutionary mechanism of gene flow A. separates the gene pools of two or more groups, typically causing the development of a new species.
B. reduces the gene pools of two or more groups, typically causing the extinction of an existing species.
C. combines the gene pools of two or more groups, typically causing the species' change in allelic frequency.
D. destroys the gene pools of two or more groups, typically causing the extinction of an existing species.

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions, because prokaryotes don't have nuclei.

Construct at least two possible hypotheses for the student’s experiment.