A segment of DNA that specifies a sequence of amino acids in a polypeptide is called a(n)
a. codon.
b. intron.
c. messenger.
d. gene.
e. enzyme
ANSWER: d
Biology & Microbiology
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A. active transport. B. energy. C. osmosis. D. All of these answers are true.
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What (and who) was the first reproductively cloned animal?
What will be an ideal response?
Biology & Microbiology
Which of the following is an example of heredity?
A) Both moths and birds have wings and can fly. B) Doberman pinschers and boxers have similar body shapes. C) Flying squirrels have a different mechanism of flight than mosquitos. D) Dalmation dogs all have spots. E) Flies and molluscs both have eyes.
Biology & Microbiology