The genes that code for blood typing are an example of ____
a. a multiple allele system
b. segregation
c. pleiotropy
d. independent assortment
e. sex-linkage
ANSWER: a
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At about pH 7 in most cells, what happens to the carboxyl R-group on an amino acid?
A) It acts as a base and gains a proton, giving it a positive charge. B) It acts as an acid and loses a proton, giving it a negative charge. C) It is oxidized, and tends to act as an electron acceptor in redox reactions. D) It remains neutral, like water, and does not have a charge.
Enzymes that cleave DNA at specific sites are called _____________.
A. vectors B. peptidases C. restriction endonucleases D. DNAses
Most digestion occurs and most nutrients and water are absorbed in the __________. Fill in the blank(s) with the appropriate word(s)
When citing a reference in Ecology format, what is the first piece of information that should be included?
A. Author's first name B. Author's last name C. Article title D. Journal title E. Year of publication