What would be the effect of each type of the following mutations? a,) Mutation that destroys...
Homework Answers
A. DNA polmerase 
is responsible for initiation of DNA replication at the origin of
replication. So if any mutation occurs which leads to destruction
of the function of DNA plymerase
will not initiate the DNA replication process
B. DNA polymerase 1 mutation will lead to disruption of the following functions-
a. A 5'-3'(forward)DNA dependent DNA plymerase activity.
b. A 3'-5'(reverse) exonuclease activity (proofreading)
c. A 5'-3'(foward) exonuclease activity during DNA repair (nick translation)
d. A 5'-3' (forward) RNA dependent DNA polymerase activity.
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What would be the effect of each type of the following mutations?
a,) Mutation that destroys...
What would be the effects on DNA replication if mutation of DNA polymerase III caused it...
What would be the effects on DNA replication if mutation of DNA polymerase III caused it to lose each of the following activities: 1. 5' to 3' polymerase activity 2. 3' to 5' exonuclease activity:
Temperature sensitive mutations are used to analyze biochemical pathways. A variety of mutations affecting DNA replication...
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The following DNA molecule is replicating and is going to undergo proofreading. To this end (in...
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Use the DNA sequence 3' CCCCATCAGTCAAGGGAA 5' to demonstrate the effect of each type of mutation...
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Match the following kinds of mutations with their characteristics or means of correction . Each item...
Match the following kinds of mutations with their
characteristics or means of correction . Each item is used only
once.
DNA mismatch during DNA replication
ultraviolet induced pyrimidine dimers
double stranded DNA breaks
apurinic sites single
base pair deletion
silent mutation
missense mutation
synonymous mutation
Match the following kinds of mutations with their characteristics or means of correction. Each item is used only once. DNA mismatch during DNA replication [Choose] [Choose) ultraviolet induced pyrimidine dimers does not change function of...
NA primase is TRUE? 27. Which ONE of the following statements about DNA primase is in...
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Describe DNA replication on the leading and lagging strands of DNA. Your answer must include a...
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1)Repairing damaged DNA is essential to maintaining the integrity of the genome. One type of repair...
1)Repairing damaged DNA is essential to maintaining the integrity of the genome. One type of repair is known as nucleotide excision repair. In this system, which order do the necessary enzymes act? A) exonuclease, DNA polymerase III, RNA primase B) helicase, DNA polymerase I, DNA ligase C) DNA ligase, nuclease, helicase D) DNA polymerase I, DNA polymerase III, DNA ligase E) endonuclease, DNA polymerase II, DNA ligase 2) What might be the result if all cells had functioning telomerase? A)...
4. The enzyme DNA polymerase has two important activities: 5-10-3 polymerase and 3 '-10-5'exonuclease. The 5'-to-3'...
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Which aspect of the E. coli DNA replication machinery accounts for high processivity? a. The beta...
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Match the following kinds of mutations with their
characteristics or means of correction . Each item is used only
once.
DNA mismatch during DNA replication
ultraviolet induced pyrimidine dimers
double stranded DNA breaks
apurinic sites single
base pair deletion
silent mutation
missense mutation
synonymous mutation
Match the following kinds of mutations with their characteristics or means of correction. Each item is used only once. DNA mismatch during DNA replication [Choose] [Choose) ultraviolet induced pyrimidine dimers does not change function of...
NA primase is TRUE? 27. Which ONE of the following statements about DNA primase is in polymerase cannot extend a new A) It is necessary for DNA synthesis because DNA polymerase canno strand in the 3 to 5' direction. B) It proofreads bases added by DNA polymerase. C) It is a type of RNA polymerase. D) It has terminal transferase activity. 28. How many of the following statements about PCNA are TRUE? • It encircles ssDNA. • It is an...
4. The enzyme DNA polymerase has two important activities: 5-10-3 polymerase and 3 '-10-5'exonuclease. The 5'-to-3' polymerase makes one misincorporation per 100,000 incorporations. A misincorporation occurs when the "wrong" nucleotide-residue is added to the growing DNA-molecule, such that the added residue is NOT complementary in the normal Watson-Crick way (G with C, A with T) to the residue in the template DNA. Normally, the 3'-to-5'exonuclease corrects most of these misincorporations, reducing the misincorporation rate to one in 10,000,000. If a...
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