Riboswitches have been observed in
A) prokaryotes.
B) eukaryotes.
C) fungi.
D) algae.
E) yeast.
A) prokaryotes.
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Creighton and McClintock worked with _______ and their model system to show that homologous chromosomes physically exchange genetic information during crossing over
A. fruit flies B. peas C. corn D. tobacco
You are investigating a clinical disorder in one of your patients. You discover that the patient has an autoimmune disease that targets and destroys fibroblasts. This disorder would most likely affect
A) fiber production by the cells, as occurs with blood clotting. B) annulus formation. C) hyluronate production in the joints. D) collagen production. E) all of the above
A duplicated chromosome has _____ chromatid(s)
a. one b. two c. three d. four
The protein coat of a virus is called the:a
capsule. b. capsid. c. exospore. d. phage. e. pilus.