Which of the following is a product of the citric acid cycle?
a. ADP
b. NADPH
c. carbon dioxide
d. water
c. carbon dioxide
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Why is there a need to produce Okazaki fragments on the lagging strand, but not on the leading strand of DNA?
A. The two parental strands of DNA are antiparallel and DNA polymerase makes DNA in the 5? to 3? direction only. B. It is substantially more efficient to make several shorter strands rather than one longer strand of DNA. C. There is not enough cellular DNA ligase for bonding Okazaki fragments together if they were produced from both parental strands. D. By having one leading strand and one lagging strand the cell can limit the amount of DNA polymerase used for chromosomal replication. E. The leading strand opens first, and so Okazaki fragments are not needed. The lagging strand unwinds second resulting in the need to produce Okazaki fragments.
Which organism controls its salt concentration by releasing salt from a structure on the leaf epidermis?
a. Dionaea muscipula b. Atriplex spongiosa c. Lathyrusodoratus d. Phaseolus e. Quercus suber
Which of the following is not a method of heat sterilization?
A. Autoclaving B. Incineration C. Heating in a dry air oven D. Pasteurization
The nervous system of a cnidarian consists of a central ganglion leading into a nerve net.
Answer the following statement true (T) or false (F)