Which of the following is an egg-laying mammalian group?
a. monotremes
b. eutherians
c. polytherians
d. metatherians
e. marsupiums
A
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Compound D is a ____________________.
Assume that you are taking an organic chemistry class. Your teacher has given you four organic compounds to analyze. She tells you that one is a carbohydrate, one is a hydrocarbon, one is a nucleic acid, and one is a protein. You discover that Compound D contains only carbon, hydrogen, oxygen, nitrogen, and phosphorous. Of the four types of compounds which were given to you to analyze, which one best describes Compound D?
Which of the following is not a helminth that causes primarily intestinal symptoms?
A. Diphyllobothrium latum B. Taenia solium C. Trichuris trichiura D. Enterobius vermicularis
One would expect a human protein to show closest similarity with the same protein in
1. E. coli. 2. yeast. 3. chimpanzees. 4. fish. 5. snakes.
Which of the following statements about RNA polymerase in bacteria is INCORRECT?
A. It binds the promoter region of a gene. B. It dissociates from the DNA at the terminator. C. It is bound to a sigma factor during initiation of transcription. D. It synthesizes RNA. E. It catalyzes the addition of nucleotides to the 5?end of a growing RNA strand.