Which process provides the genetic variability that natural selection acts on during evolution?

a. fitness
b. mitosis
c. mutation
d. adaptation
e. artificial selection


c

Biology & Microbiology

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The first genetic trait described in humans was ____

a. albinism b. dwarfism c. Marfan syndrome d. multiple sclerosis e. brachydactyly

Biology & Microbiology

The strongest chemical bonds are

A. hydrogen bonds. B. Van der Waal forces. C. hydrophobic interactions. D. ionic bonds. E. covalent bonds.

Biology & Microbiology

Disulfide bonds contribute to the ___________ structure of insulin

a. primary and secondary b. secondary and tertiary c. tertiary and quaternary d. secondary, tertiary, and quaternary

Biology & Microbiology

Figure 42.11 Use the figure above showing human embryonic developmental day 14 to answer the following question. The structure that later becomes part of the placenta is indicated by ____.

A. A B. B C. C D. D E. E

Biology & Microbiology