Breeding, genetics and conservation > proofreading > Flashcards

proofreading Flashcards

(6 cards)

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1
Q

what is proofreading

A

DNA polymerase proofreads the codes by checking the bases as they are added to the strand, it overwrites any errors in a process called excision repair

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2
Q

what is dimer (distortion) caused by

A

incorrect nucleotides matching up

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3
Q

what do nuclease enzymes do in proofreading

A

cut the dna at 2 points

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4
Q

what is the 3rd stage of proofreading

A

the incorrect dna is removed

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5
Q

what is the 4th stage of proofreading

A

DNA polymerase repairs the gap

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6
Q

what is the 5th stage of proofreading

A

the nicks sealed up by DNA ligase

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