The portion of the DNA molecule that is translated is composed of
a. introns.
b. anticodons.
c. exons.
d. transcriptions.
e. exons and transcriptions.
ANSWER: c
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Which of the following is an example of a processive enzyme?
A. DNA polymerase I B. DNA polymerase III C. DNA ligase D. Okazaki fragments
Which of the following organelles does not receive proteins synthesized on cytoplasmic ribosomes by posttranslational import?
A) lysosome B) nucleus C) mitochondria D) peroxisomes E) chloroplast
Arthritis is a condition in which
a. bones are unusually fragile and break easily. b. the bone marrow does not develop properly. c. there is an inflammation of the joints. d. the epiphyses do not permit growth. e. tendons are stretched.
Humans still have body hair even though it is greatly reduced and serves little function. The hair is a(n)
A) analogous structure. B) vestigial structure. C) mutation. D) homologous structure. E) adaptation.