When male lions reach sexual maturity, they leave their group in search of a new pride. This can alter the allele frequencies of the population through which of the following mechanisms?
a. Natural selection
b. Genetic drift
c. Gene flow
d. Random mating
Ans: c. Gene flow
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Indicate whether the statement is true or false.
An arrangement of microtubules located in the matrix of cilia and flagella is called the ________.
A. axial filament B. axial bundle C. axillary tubule D. axoneme
Would plant roots exhibit gravitropism in outer space? Why or why not? What will be an ideal response?
Monosaccharides may be characterized by all
EXCEPT which of the following? a. a ketone group b. carbon, hydrogen, and oxygen in a 1:2:1 ratio c. a backbone of five to six carbon atoms d. one aldehyde group e. the presence of glycerol and fatty acids