The final acceptor of electrons during the light reactions of the noncyclic electron pathway is
a. PS I.
b. NADP+.
c. PS II.
d. water.
e. ATP.
d. water.
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For reliable results, the niacin test should be performed only from cultures that are at least:
a. 2 weeks old and show at least five colo-nies on Löwenstein-Jensen medium. b. 3 weeks old and show at least 50 colonies on Löwenstein-Jensen medium. c. 3 weeks old and show at least 50 colonies on Middlebrook 7H11 agar. d. 2 weeks old and show at least five colo-nies on Middlebrook 7H11 agar.
The central dogma describes the flow of information of gene expression as ____
a. DNA ® RNA ® protein b. RNA ® DNA c. RNA ® DNA ® protein d. protein ® DNA ® RNA e. DNA ® protein ® RNA
what antiviral agent is used to treat respiratory syncytial virus?
What will be an ideal response?
Which of the following is NOT characteristic of RNA?
A) It is a helical polymer. B) It is usually double-stranded. C) Its "backbone" is composed of pentoses and phosphates. D) It contains both purines and pyrimidines. E) It can function as a catalyst.