A pear plant with the genotype Aa can produce gametes containing:a
either A or Aa.
b. only the dominant A.
c. only the recessive a.
d. either A or a.
e. either AA, Aa, or aa.
D
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Acetogens can ferment glucose into acetate, but methanogens cannot
Indicate whether the statement is true or false.
Inactivation of a fluorescent dye in a very concentrated spot on a cell so that the fluidity of membranes can be visualized is called
A) liposome formation. B) SDS-PAGE. C) photobleaching. D) the freeze-fracture technique. E) ferritin-conjugated lectins.
Like __________, phosphorus can only be taken up
by plants in __________. a. carbon; ionized form b. nitrogen; compounds c. nitrogen; ionized form d. hydrogen; ionized form e. carbon; compounds
Species diversity is highest when ________
A) species richness is high and relative abundance is unevenly distributed B) species richness is low and relative abundance is unevenly distributed C) species richness is high and relative abundance is evenly distributed D) species richness is low and relative abundance is evenly distributed