The definition of allopolyploidy is
a. a genetic divergence that results in nonviable offspring.
b. a decrease in chromosome number due to hybridization of different species.
c. a decrease in chromosome number within a single species.
d. an increase in chromosome number due to hybridization of different species.
e. an increase in chromosome number within a single species.
D
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Which of the following, produced from a blood protein as part of the chain of events in response to a significant drop in blood pressure, quickly raises blood pressure by constricting many arterioles?
a. atrial natriuretic factor b. renin c. aldosterone d. antidiuretic hormone e. angiotensin
Four of five mammals below are known to have been
cloned. Select the exception. a. mules b. deer c. cats d. goats e. humans
Action potentials are propagated along a(n) ____.
A. sodium channel B. axon in two directions C. gated channel D. axon in one direction E. dendrite
The folding of a polypeptide into a three-dimensional shape is its (secondary/tertiary/quaternary) structure
What will be an ideal response?