Which of the following is NOT a characteristic of Okazaki fragments?
A) They are checked for accuracy by DNA polymerase III.
B) They make up the lagging strand of replicated DNA.
C) They begin with an RNA primer.
D) They are joined together by DNA ligase.
E) They are longer in eukaryotic cells.
E
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What are the steps toward multicellularity, in the correct order?
A. Some cells become gametes, then a colony forms, and finally some cells start to specialize. B. Some protists start to specialize for specific tasks, then they form a colony with specialists, and finally some specialists become gametes. C. First a colony of protists forms, then some become gametes, and finally others specialize in various tasks. D. First a colony of protists forms, then some protists start to specialize in specific tasks, and finally some cells become gametes.
An antimicrobial agent that inhibits the growth of bacteria is called
A. Bacteriostatic B. Bacteriocidal C. Synergistic D. Broad spectrum
When does the GTP bound to -tubulin hydrolyzed to GDP and Pi?
a. During formation of the -dimer b. During polymerization of dimers onto microtubules c. During depolymerization of dimers from microtubules d. Following polymerization but before depolymerization e. Following depolymerization of dimers from microtubules
Bacterial cells are positively charged.
A) True B) False