Match each DNA repair mechanism with its description. photoactive repair base excision repair nucleotide excision repair mismatch repairÂ Â SOS system nonhomologous...

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Biology

Match each DNA repair mechanism with its description.
photoactive repair
base excision repair
nucleotide excision repair
mismatch repairÂ Â
SOS system
nonhomologous end-joining
A.
recognizes newly synthesized but improperly paired DNA and nicksthe strand to replace
B.
cuts a piece out of distorted DNA to be filled in bypolymerase
C.
an emergency, error-prone effort to salvage replication ofdamaged DNA
D.
removes and replaces depurinated or deaminated bases fromsugars
E.
repairs pyrimidine dimers in the presence of light
F.
binds together two broken strands of DNA

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1 Photoactive Repair Repairs pyrimidine dimers in presence of light Photoactive repair or photoreactivation is a light dependent direct repair system which acts directly on damaged nucleotides usually pyrimidine dimers The enzyme involved in the process is DNA photolyase and direct repair system is stimulated with the light of wavelength between 300 to 500 nm 2 Base excision repair removes and replaces depurinated or deaminated bases from sugars In base excision repair system enzyme DNA glycosylase cleaves N glycosidic bonds which result in liberation of altered or damaged bases which See Answer

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A.	recognizes newly synthesized but improperly paired DNA and nicksthe strand to replace
B.	cuts a piece out of distorted DNA to be filled in bypolymerase
C.	an emergency, error-prone effort to salvage replication ofdamaged DNA
D.	removes and replaces depurinated or deaminated bases fromsugars
E.	repairs pyrimidine dimers in the presence of light
F.	binds together two broken strands of DNA