To produce a genomic library DNA, DNA fragments are incorporated into plasmids that are introduced into bacteria
__________________ Indicate whether the statement is true or false.
True
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Which of the following is most likely to result in a nonfunctional polypeptide?
A. a silent mutation B. a missense mutation C. a nonsense mutation D. a transition mutation E. Silent and missense mutations are the most likely to result in a nonfunctional polypeptide.
Root hairs are similar to mycorrhizae in that both
a. are multicellular. b. are extensions of root epidermal cells. c. are symbiotic relationships involving root cells. d. increase the surface area available for absorption. e. fit all of these descriptions.
The coronary sinus drains blood directly into the:a
inferior vena cava. b. superior vena cava. c. left atrium. d. right atrium. e. coronary arteries.
All of the following are correct about allergic reactions to drugs except
A. hives may be the result after the drug is taken. B. allergic reactions generally will occur the first time a person takes the drug. C. the drug acts as an antigen. D. anaphylaxis can occur. E. the greatest number of antimicrobic allergies are to the penicillins.