The accompanying figure shows the percentage of pairwise genetic comparisons within sample populations of living hominids, graphed against the percentage of sequence divergence for each pair. We can conclude from the figure that ________
A) any randomly selected pair of humans in the world should differ in their mitochondrial DNA sequences by less than 6%
B) humans are more genetically diverse than Western chimpanzees
C) hominid species do not differ significantly in levels of genetic diversity
D) humans share a more recent common ancestor with bonobos than gorillas
E) All of the above.
A
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Reciprocal translocations can affect gene dosage because:
A. the genes involved in the translocation are nonfunctional. B. the two chromosomes involved in the translocation may not assort together during meiosis. C. the two chromosomes involved in the translocation always assort together during meiosis. D. reciprocal translocation involves the duplication of one set of genes and the deletion of another set of genes. E. none of these
Sickle cell disease exhibits a variety of symptoms and is more severe under stressful situations. Sickle
cell disease is an example of a _____ genetic disorder. A. discontinuous B. continuous C. polygenic D. multifactorial E. phenotypic
The cerebrum is more developed in monkeys, apes, and humans compared to other primates
____________________ Indicate whether the statement is true or false.
The two populations represented in boxes 1 and 2 of the figure
A. have different allele frequencies.
B. are genetically identical.
C. contain the same alleles.
D. are probably different species.