BIOL321 4 Unit 3 Problem Set 12. Match the description on the left with the repa

Question

BIOL321 4 Unit 3 Problem Set 12. Match the description on the left with the repair pathway on the right. (a) Removes damaged bases and bases i. Nonhomologous End Joining up and downstream of damage before ii. Mismatch Repair using undamaged strand as template ili. Base Excision Repair iv. Nucleotide Excision Repair (b) Can result in some deleted base pairs (c) Uses methylated strand as template (d) Template varies depending on stage (e) AP-endonuclease recognizes abasic v. Homologous Recombination near damage of the cell cycle site and makes a nick 13. Let's say a cytosine is spontaneously deaminated. (a) What base does a deaminated cytosine immediately become? (b) What repair system could recognize and repair this damage? Write 'none' if it cannot be repaired (c) If no repair occurs before replication, what would the two replicated base pairs be? and - (d) If a second round of replication occurs without repair, what would the four replicated base pairs be? , ____ , and

Explanation / Answer

12. Match the pairs:

a) ----> Homologous recombination.

b) ----> Mismatch repair

c) ----> Nucleotide excision repair.

d) ----> Non homologous end joining.

e) ----> Base excision repair.

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