Which of the following is an egg-laying mammalian group?

a. monotremes
b. eutherians
c. polytherians
d. metatherians
e. marsupiums


A

Biology & Microbiology

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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?

Biology & Microbiology

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

Biology & Microbiology

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.

Biology & Microbiology

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.

Biology & Microbiology