It is clear from current research on human behavior genetics that _____
a. animal models of human disease are not useful for behavior research
b. epigenetics does not play a significant role in behavior disorders
c. few abnormal behaviors have an environmental component
d. most abnormal behaviors are due to single-gene effects
e. abnormal behaviors are not due to single-gene effects
e
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The embedded peptides in MHC proteins are normally derived from breakdown products of cell metabolism
Indicate whether the statement is true or false.
Mechanoreceptors are excited by:
a. tissue damage b. temperature change c. chemical energy of specific substances d. light e. pressure, a change in position, or acceleration
The DNA of telomeres has been highly conserved throughout the evolution of eukaryotes. This most likely reflects _____
A) the low frequency of mutations occurring in this DNA B) continued evolution of telomeres C) that new mutations in telomeres have been advantageous D) a critical function of telomeres
Carbon gives rise to so many different kinds of molecules because it
A. has been around so long due to its inertness. B. is one of the most abundant elements on earth. C. is able to form bonds with itself and many other elements. D. all of the above