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OCR A Biology A-Level > Nucleic Acids 2 Key Words > Flashcards

Nucleic Acids 2 Key Words Flashcards

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1
Q

Semi-conservative replication

A

DNA replication results in one old strand and one new strand present in each daughter molecule

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2
Q

DNA replication

A

Semi-conservative process of production of identical DNA molecules

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3
Q

DNA helicase

A

Enzyme catalyses unwinding & separation of strands in DNA replication

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4
Q

DNA polymerase

A

Enzyme catalyses phosphodiester bond formation between adjacent nucleotide molecules in DNA replication

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5
Q

Continuous replication

A

Replication undergone by leading strand

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6
Q

Discontinuous replication

A

Replication undergone by lagging stand

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7
Q

Leading strand

A

Undergoes continuous replication in DNA replication

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8
Q

Lagging strand

A

Undergoes discontinuous replication in DNA replication, produces Okazaki fragments

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9
Q

Okazaki fragment

A

DNA sections produced on lagging strand joined by DNA ligase

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10
Q

DNA ligase

A

Enzyme catalyses joining of Okazaki fragments

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OCR A Biology A-Level (31 decks)

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