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
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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
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.
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.
The human papilloma virus E6 and E7 genes exemplify:
A. tumor suppressor genes B. oncogenes C. protooncogenes D. CDK inhibitors E. cyclin-dependent kinases