One reason we see relatively little genetic variation among human regional populations is that:
A. extensive migration among human
populations has homogenized gene pools.
B. extensive convergent evolution has
homogenized gene pools.
C. genetic drift has reduced variation in most
regional populations over time.
D. humans migrated out of Africa so recently
that we haven't had enough time for regional
variation to accumulate.
E. None of the answer options are correct.
D
You might also like to view...
Proteins in biological systems _____
A) store genetic information B) link with other proteins to form bilayers in cell membranes C) form high-energy intermediates such as ATP D) catalyze reactions
You are interested in reducing the overall ecological impact of your college/university. Which of the following would immediately contribute to your goal? (Choose all correct answers.)
A. lower enrollment and a reduced college workforce B. decreased energy use in buildings C. installation of solar energy in some buildings
While studying a bacterial strain, a scientist notes a short DNA sequence between inverted repeats is present in both the chromosome and a plasmid within the cell. This sequence is most likely a(n) (phage/transposon/F plasmid)
What will be an ideal response?
List five mechanisms by which gene frequencies in a population can be altered. Describe each briefly
What will be an ideal response?