DNA Replication Flashcards by Nikole Arns | Brainscape

Q

DNA replication

A

Each strand acts as a template

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Q

Bidirectional Replication

A

Replication forks move in opposite directions

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Q

Origins of Replication

A

In eukaryotes Replication begins at many different sites

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Q

Nothing happens

A

On its own; many proteins and enzymes

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Q

Antiparallel

A

One moves up; the other down

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Q

Unidirectional orientation

A

New nucleotides can only be added to the 3’ end

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Q

Polymerase

A

Enzymes that synthesize DNA

Can only extend in the 5-3 direction

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Q

Primers

A

Required to begin synthesis

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Q

Primase

A

Creates primers as a type of RNA polymerase

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Q

Binding Protein

A

Binds strands back together

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Q

Topisomase

A

Uncoils/flattens DNA for Helicase to unzip

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Q

Helicase

A

Unwinds genes

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Q

Leading strand

A

Follows moving fork

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Q

Lagging strand

A

Runs away from replication fork

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Q

Okazaki Fragments

A

Short pieces of DNA

Lagging strand

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