The pan genome of a microbial species is constantly changing because of
A) bottleneck events.
B) horizontal gene transfer.
C) substitutions.
D) substitution and bottleneck events.
Answer: B
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The capacity of the ___________ to store ____________ can limit the rate of carbohydrate production in CAM leaves
A. vacuole; phosphoenol pyruvate B. vacuole; organic acids C. leaf; CO2 D. leaf; HCO3
Once an amino acid has been attached to the appropriate tRNA, the tRNA is called a(n) ________, and the amino acid is said to be ________.
Fill in the blank(s) with the appropriate word(s).
After mitosis, the chromosome number of a descendant cell is _____ the parent cell's
a. the same as b. one half of c. rearranged compared to d. doubled compared to
Action potentials are normally carried in only one direction: from the axon hillock toward the axon terminals. If you experimentally depolarize the middle of the axon to threshold, using an electronic probe, then _____
A) no action potential will be initiated B) an action potential will be initiated and proceed only in the normal direction toward the axon terminal C) an action potential will be initiated and proceed only back toward the axon hillock D) two action potentials will be initiated, one going toward the axon terminal and one going back toward the hillock