Chimpanzees are considered to be our closest extant relative because
A. they have flat, spreading noses.
B. they are a highly social species.
C. they have prehensile tails.
D. their genome is 99% identical to the human genome.
E. their upper/lower limbs equally account for bearing the body weight.
Answer: D
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Another name for a chromosome is a _______, since it contains genes that are often inherited together
A. linkage group B. crossing over group C. genetic recombinant D. bivalent
A cell that accumulates lots of mutational damage to its DNA may escape the normal controls of the cell cycle and
become ____________________. Fill in the blank(s) with the appropriate word(s).
Should we allow (or urge) testing of minor-age children or teens for adult-onset disorders for which there is no treatment or cure?
What will be an ideal response?
What do the genetic comparisons among modern organisms indicate?
A. All modern life descended from the same cellular ancestor. B. The evolution of DNA-based systems was preceded by an interval during which RNA was the genetic material. C. All modern life descended from multiple differing unicellular ancestors. D. Genes governing information processing are most like those of archaea, and genes related to metabolism are most like those of bacteria. E. Chemoheterotrophs gave rise to all modern organisms.