What occurs in a missense mutation?
a. All of the amino acids beyond the mutation point are changed.
b. A nucleotide is added to the DNA.
c. A nucleotide is deleted from the DNA.
d. A single amino acid is substituted for another in a protein.
e. The protein is always completely nonfunctional.
d
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Human cultural evolution is generally divided into three stages. Explain how each has affected the
Earth. What will be an ideal response?
Protostomes include ________.
Fill in the blank(s) with the appropriate word(s).
Humans excrete their excess nitrogenous wastes as
A. relatively nontoxic urea. B. uric acid crystals. C. very toxic ammonia. D. compounds containing protein.
True or False: The quantity of energy released is minimal when the two half reactions' redox couples (E0?) are relatively close to each other
a. TRUE b. FALSE