Genetic variations that confer no apparent selective advantage or disadvantage in a particular environment are said to be selectively ____
a. random
b. deleterious
c. neutral
d. benign
e. stabilizing
ANSWER: c
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It is often stated that the phosphate bonds in ATP are "high energy," but in fact, they are not notably high in energy. Rather, they are easy to break, and the G of hydrolysis is a "useful" quantity of energy
What makes the phosphate bonds easy to break? A. They are close to the destabilizing nitrogenous base adenosine. B. The positive charges on amino groups repel each other. C. The negative charges on the phosphate groups repel each other. D. The high alkalinity attacks bonds between the phosphate groups.
Heritable changes in gene expression not due
to changes in DNA sequences is termed
a. epigenetics. b. methylation. c. translational mutation. d. differentiation. e. frameshift inheritance
The process that converts one molecule of nitrogen to ammonia using 16 molecules of ATP is called ____
a. ammonia-oxidation b. ammonification c. nitrogen fixation d. nitrification e. denitrification
An inappropriate immunologic response to some substance is an ________.
A. agglutination B. necrosis C. allergy D. inflammation