Homeotic genes are, in general, in control of
a. X chromosome inactivation.
b. formation of major body parts.
c. methylation of nucleotides.
d. dosage compensation.
e. more than one of these
B
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Proteins that are functionally less important for the survival of an organism generally evolve _____ more important proteins
A. more slowly than B. more quickly than C. at the same rate as
At what level of biological organization does evolution take place?
A. community B. organism C. ecosystem D. population
A region of undifferentiated cells that produces new tissues by cell division is called a
a. hypocotyl b. epicotyl c. meristem d. vascular bundle e. mesophylotum
Cell signaling can be classified into
a. three distinct types based on the distance over which the signaling molecules act b. two distinct types based on the distance over which the signaling molecules act c. three distinct types based on the signaling molecules d. none of the above