The entire set of cloned fragments of the complete human genome is termed a
A. book of genes.
B. recombinant gene.
C. DNA library.
D. restructured genome.
C
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A molecule binds and blocks the active site of an enzyme so that there can be no normal binding between the enzyme and its substrate. This molecule is called a(n) ___________.
a. irreversible inhibitor b. uncompetitive inhibitor c. reversible inhibitor d. competitive inhibitor e. none of the above.
The shape of a particular cell is often determined by its __________
a. cytoskeleton b. plasma membrane c. cytoplasm d. nucleus
Peripheral proteins are linked to either surface of the plasma membrane by:
a. covalent disulfide bonds. b. associating with fatty acids through hydrophobic interactions. c. associating with glycoproteins on the inner membrane surface. d. bonding to integral proteins through noncovalent interactions. e. embedding in one side of the membrane and, thus, not extending through to the other side.
Jams, jellies, preserves, honey, and other foods with high sugar content hardly ever become contaminated by bacteria, even when the food containers are left open at room temperature. This is because bacteria that encounter such an environment ____
A) undergo death as a result of water loss from the cell B) are unable to metabolize the glucose or fructose, and thus starve to death C) are obligate anaerobes D) are unable to swim through these thick and viscous materials