DNA replication Flashcards

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1
Q

Semiconservative replication

A

That each daughter strand will contain one old or conserved strand.

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2
Q

Topoisomerase

A

Prevents tangling - is an enzyme

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3
Q

Helicase

A

Unwind the double helix

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4
Q

Single strand Binding proteins

A

Bind and stabilize single-stranded DNA

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5
Q

DNA polymerase

A

add nucleotides to the 3’ end
“5’ to 3’ is the way for me”

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6
Q

Primase

A

Starts the RNA from the beginning makes the primer

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7
Q

What starts the chain for DNA polymerase

A

Primase

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8
Q

Leading strand

A

Goes to the replication fork

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9
Q

Lagging strand

A

Synthesized in a series of fragments

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10
Q

Ligase

A

Joins or glues the fragments of the lagging strand together

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11
Q

DNA polymerase (proofreading & repairing)

A

Replacing any incorrect nucleotides
(fills in blank areas)

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12
Q

Nuclease - Proofreading & Repairing DNA

A

cuts out the messed-up portion

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13
Q

Telomeres

A

A special nucleotide sequence at the end of the eukaryotic chromosomes (postpones the aging of genes)

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14
Q

Telomerase

A

Activity in cancer cells, which allow cancer cells to persist

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15
Q

Prokaryotic cell structure

A

Small amount of protein
circular DNA molecule
Nucleoid region

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16
Q
A
17
Q

Eukaryotic cell structure

A

Linear DNA molecule
a large amount of protein
Chromatin (found in the nucleus)

18
Q
A