Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Chapter 30, Problem 3P
Interpretation Introduction
Interpretation:
The advantage of DNA synthesis to be quicker than RNA synthesis should be determined.
Concept introduction:
DNA synthesis can be defined as the process by which the deoxynucleic acids such as adenine, thymine, cytosine, and guanine are associated together to form DNA.
RNA synthesis (transcription) is the synthesis of an RNA molecule from the nucleotide’s adenine, cytosine, guanine, or uracil. The
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True/false? if false, justify briefly
DNA synthesis during the S phase is extremely rapid. Cells undergoing the S phase are thus extremely sensitive to rays and chemicals.
Need help.
Contrast DNA replication with gene expression (transcription→translation)—when does each occur? What molecules are involved? How much of the DNA is utilized?
May you please help me with this?
A sample of purified DNA was incubated with deoxyribonuclease (DNAse) at 37oC. An
aliquot was removed from the reaction mixture every minute for 5 minutes and
the A260 recorded. The following data were obtained.
Time (min) A260
0 0.60
1 0.64
2 0.67
3 0.70
4 0.72
5 0.73
Describe the action of deoxyribonuclease on DNA and explain the increase in
A260.
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- Both DNA polymerase (any DNA polymerase) and ligase catalyze the formation of a bond between nucleotides, but these two enzymes do NOT catalyze the same reaction. Briefly describe the differencesbetween the reaction catalyzed by the polymerase activity of DNA polymerase and the one catalyzed by ligase.arrow_forwardINSTRUCTION: Given the DNA sequence below, provide the answers to the following items. a. complimentary DNA strand 1.) G A A A T G A C C A G A T T T A T G G C C T G A 2). A T G C G A C C T T A A G T C A A T T G C G A C b. mRNA 1.) G A A A T G A C C A G A T T T A T G G C C T G A 2). A T G C G A C C T T A A G T C A A T T G C G A C c. protein synthesized 1.) G A A A T G A C C A G A T T T A T G G C C T G A 2). A T G C G A C C T T A A G T C A A T T G C G A Carrow_forwardRestriction enzymes are used in laboratory manipulations to cut DNA; many of these enzymes can be inactivated by incubating them at 80°C for 30 minutes. Why would this incubation inactivate the enzyme? Why do enzymes not simply operate better at higher temperatures, as other catalysts do?arrow_forward
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