How is it possible that multiple sites of DNA replication can exist inside the cell?
A. there are multiple origins of replication
B. genes are replicated quickly, so there are usually >4 of one gene at a time
C. there are not multiple sites of replication
D. during cytokinesis, DNA is replicated at twice the rate
Ans: A. there are multiple origins of replication
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You see a purple light and immediately receive a mild electric shock. This happens several times. You eventually cringe at the sight of the purple light. The first time you saw that light it was a(n) ______________
Fill in the blank(s) with the appropriate word(s).
Proteolytic processing of eukaryotic proteins involves:a
removal of a portion of the polypeptide chain from an inactive precursor of the protein. b. the addition of one or more functional groups to a precursor protein. c. the removal of one or more functional groups from a precursor protein. d. removal of histones. e. removing the cap and tail of a newly synthesized protein
Double-stranded DNA that contains a high G-C content requires a higher temperature in order to separate the two DNA strands. This is because
A) high G-C content makes the DNA less flexible. B) G-C base pairing involves three hydrogen bonds, whereas A-T pairing involves only two. C) Only the first and second answer choices are correct. D) All of the above answer choices are correct. E) DNA with a high G-C content forms a tighter double helix.
The Tricarboxylic Acid Cycle serves all of the following functions EXCEPT?
A. It supplies key intermediates for the ultimate synthesis of amino acids, lipids, purines, and pyrimidines B. It serves as the final common pathway for the complete oxidation of amino acids, fatty acids, and carbohydrates C. It is the primary means in both bacteria and eukaryotic cells for the conversion of glucose to pyruvate D. It is the major mechanism for the generation of ATP.