Consider the following two populations and the frequencies of alleles at the FGFR-1 locus. Allele 1 Allele 2 Allele 3 Allele 4 Population 1 0.25 0.25 0.25 0.25 Population 2 0.50 0.42 0.05 0.03 Which of the populations has greater allelic variation?
A. population 1
B. population 2
C. Neither; allelic diversity is the same for
both populations.
C
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In humans, ability to roll the tongue (R) is dominant to being unable to roll (r). Having freckles (F) is dominant to having no freckles (f). A freckled tongue-roller could have which of the following genotypes?
A. RRFF B. RrFf C. rrFF D. RRFF and RrFf only E. all of the answer options are correct
The purpose of the fermentation process is the
A) regeneration of NAD+. B) generation of additional energy in the form of ATP. C) generation of additional reducing equivalents. D) production of novel compounds, such as inorganic acids. E) all of the above
The muscular digestive organ of birds in which food is ground into small bits is the
a. lumen b. gizzard c. crop d. stomach e. cloaca
Altogether, the body secretes about 7 liters of water into the alimentary canal each day. About what percentage of this water gets reabsorbed?
A) 30% B) 50% C) 60% D) 90%