Consider the following mtDNA sequences obtained from chimpanzee and humans in the following geographic regions: Chimp: ATGCGCATTCAATG China: ATGGGCTTTCAATC Ethiopia: ATGGGCATTCAATC England: ATGGGCTTTCAATC Kenya: ATGGGCATTCAATA
Which of the following statements is NOT correct:
A. These data depict a higher level of
sequence divergence between human and
chimp than is to be expected based on
overall levels of genetic similarity between
human and chimp.
B. These data are consistent with the multiregional
hypothesis for the origin of humans
because the Asian and European sequences
are more closely related to each other than
either is to the African sequences.
C. These data are consistent with an "out of
Africa" hypothesis for the origin of humans
because the Kenya and Ethiopian samples
exhibit an ancestral character state at
position 7.
D. The African sequences represent older
evolutionary lineages than the European
sequences because they have one
polymorphic site.
B
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While eating lobster for dinner one night your friend asks what you think might happen if this marine invertebrate, which is normally isosmotic with respect to the surrounding seawater, were to be moved to a bay with a slightly lower salt concentration instead of being caught. You reply that, in order for the lobster to be isosmotic with respect to new environment,
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