Match each DNA repair mechanism with its description.
photoactive repair
base excision repair
nucleotide excision repair
mismatch repair
SOS system
nonhomologous end-joining
A.
recognizes newly synthesized but improperly paired DNA and nicks
the strand to replace
B.
cuts a piece out of distorted DNA to be filled in by
polymerase
C.
an emergency, error-prone effort to salvage replication of
damaged DNA
D.
removes and replaces depurinated or deaminated bases from
sugars
E.
repairs pyrimidine dimers in the presence of light...
Describe the mechanism underlying the below repair
mechanisms.
a. Mismatch Repair
b. Postreplication Repair
c. SOS Repair
d. Photoreactivation Repair
e. Base Excision Repair
f. Nucleotide Excision Repair
g. Doublestranded Break Repair
With reference to the mechanisms of mismatch repair and
nucleotide-excision repair in E.
coli cell, which mechanism is more energy costing?
Explain your answer.
Compare and contrast the processes of base excision repair and
methyl-directed mismatch repair in prokaryotes. In your answer
discuss:
a) Under which circumstances this mechanism will need to be used
in the cell.
b) The sequence of events that occur in the repair process.
c) The names and roles of the enzymes involved in each repair
mechanism.
Using one repair pathway as an example provide a detailed
description of the mechanism of excision repair, and explain the
importance of excision repair in maintaining genome stability.
Essay style please include diagrams