Cytogenetics Repair Dna Damage Mmr Ber 1 Online Exam Quiz

Cytogenetics Repair Dna Damage Mmr Ber 1 GK Quiz. Question and Answers related to Cytogenetics Repair Dna Damage Mmr Ber 1. MCQ (Multiple Choice Questions with answers about Cytogenetics Repair Dna Damage Mmr Ber 1

Which of the following mismatches will be ignored by MMR?

Options

A : A—C

B : T—T

C : G—T

D : C—C

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Mut H acts as ______________

Options

A : Adaptor

B : Exonuclease

C : Endonuclease

D : Helicase

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Which of the following modes of repair is restricted to S phase of the cell cycle?

Options

A : BER

B : MMR

C : NER

D : DSB

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In an experiment you make two setups, in 1st you knock down the DAM and in 2nd you over express DAM. What will be the observation for both the setups?

Options

A : In 1st case BER is compromised and in 2nd MMR is compromised

B : In 1st case MMR is compromised, while in 2nd MMR is more accurate

C : In both cases MMR is compromised

D : In both cased BER is compromised

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Which of the following disease in humans is due to the error in MMR?

Options

A : Lynch syndrome

B : Xeroderma Pigmentosum

C : Cockyne’s syndrome

D : Trichothio dystrophy

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6, 4 PP are brought about by which type of mutagen?

Options

A : Methylase

B : Phosphatase

C : Radiation

D : Base Analogue

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Which MMR protein homologue has not yet been discovered in eukaryotes?

Options

A : Mut L

B : Mut H

C : Mut S

D : Rec J

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Which of the following factors in MMR can recognize the mismatch?

Options

A : Mut L

B : Mut S

C : Mut H

D : XRCC1

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If the nick is at 5’ end of the mismatch which of the following will be recruited?

Options

A : Rec J

B : Ruv D

C : Exonuclease I

D : Exonuclease X

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DNA microsatellites are prone to which type of mutation?

Options

A : Transition

B : Transversion

C : Addition

D : Methylation

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