Which is not one of the four atoms that make up the bulk of living organisms?

A. Calcium
B. Carbon
C. Nitrogen
D. Oxygen


Answer: A

Biology & Microbiology

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Which endocrine gland secretes TRH?

a. thyroid b. parathyroid c. thymus d. hypothalamus e. anterior pituitary

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Which kind of enzyme prevents DNA from tangling up by introducing negative supercoils as the replication fork migrates during replication?

A) Helicase B) Ligase C) DNA polymerase I D) DNA polymerase III E) Topoisomerase

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You are worried about your friend Mary, a type 1 diabetic. She is nauseated, short of breath, tired, and confused. She says not to worry because she just has a case of the flu. What diagnostic test should you urge her to perform to make sure that there

is nothing more serious going on? A) stress test for the heart B) blood pressure C) urinary ketones D) blood bilirubin

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