Answer the following questions true (T) or false (F)

1. A reversible reaction is one in which the forward and reversible reactions are both possible such as: AB ? A + B and A + B ? AB.

2. A phosphodiester bond links a fatty acid to a glycerol molecule to form a fat or an oil.

3. Spirochetes move in a corkscrew-rotary motion due to a specialized periplasmic flagellum.


1. TRUE
2. FALSE
3. TRUE

Biology & Microbiology

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Mutagenesis ____

a. is an example of spontaneous mutation b. acts directly on proteins by causing them to unfold c. occurs due to a single mRNA being translated by too many ribosomes simultaneously d. is the production of mutations in a laboratory by exposure of a living organism to a mutagen e. occurs when errors made by DNA polymerase are not repaired

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Which portion of a phospholipid is hydrophilic?

a. fatty acid tails b. glycerol heads c. The entire phospholipid is hydrophilic. d. None of the phospholipid is hydrophilic.

Biology & Microbiology

The most common number of carbons in fatty acid hydrocarbon chains of membrane phospholipids is

A) 7. B) 10. C) 16. D) 19. E) 24.

Biology & Microbiology

The human papilloma virus E6 and E7 genes exemplify:

A. tumor suppressor genes B. oncogenes C. protooncogenes D. CDK inhibitors E. cyclin-dependent kinases

Biology & Microbiology