DNA Replication Flashcards

(43 cards)

1
Q

Define anti parallel

A

strands the are opposite but next to each other

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2
Q

how is the leading strand started

A

3’

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3
Q

how is the new strand written for the leading strand

A

5’—>3’

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4
Q

What kind of replication is happening with the leading strand?

A

continuous

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5
Q

What is the helicase

A

protein that unwinds and separates DNA

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6
Q

What is the primase

A

protein that creates RNA primer

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7
Q

What is DNA polymerse III

A

lays down new strand

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8
Q

What is DNA polymerse I

A

replaces primer with DNA

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9
Q

What kind of replication happens with the lagging strand

A

discontinuous

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10
Q

In the lagging strand, what does Polymerse III do

A

lays down okazaki fragments

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11
Q

In the lagging strand, what does Polymerse I do

A

replaces primer with DNA

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12
Q

What does a ligase do

A

attaches fragments to the lagging strand of DNA

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13
Q

What are the two steps of DNA to protein

A

Transcription and Translation

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14
Q

What happens during RNA synthesis

A

RNA copies DNA

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15
Q

What replaces Thymine during RNA synthesis

A

Uracil

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16
Q

What happens during protein synthesis

A

RNA is read to put amino acid together

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17
Q

What are the three parts to each gene

A

promoter region, body, and termination signal

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18
Q

what is the promoter region

A

where RNA polymerse binds

19
Q

what is the body in a gene

A

begins with the start codon

20
Q

what is the termination signal in a gene

A

stop codon and signal for polyerse to detach

21
Q

What is the machinery

A

transcription factors and RNA polymerase

22
Q

what are transcription factors

A

recognize promotor region and signal polymerse to bind

23
Q

what is the RNA polymerse

A

Pulls DNA strands apart and creates RNA strand from DNA template strand

24
Q

What are the three steps to transcription

A

Initiation, elongation, and termination

25
What is initiation
transcription factors find and attach to a promotor
26
RNA attaches to
DNA
27
What does the polymerse do
separates DNA and begins synthesis of RNA from DNA strand template
28
DNA is read from
3' to 5'
29
DNA is created from
5' to 3'
30
In elongation what does the RNA polymerse travel down
DNA template
31
With what are RNA strands created with
bases complimentary to DNA strand
32
Why do the RNA strands separate
so DNA strands can reattach
33
at termination signal what does the polymerse release
DNA and RNA
34
What RNA strand is created at the end of transcription
messenger RNA (mRNA)
35
What is the full name of RNA
ribionucleic acid
36
What are the three types of RNA
Messenger, ribosomal, and transfer
37
What do the messenger RNA do
code for protein
38
What do the ribosomal RNA do
protein complex that reads mRNA and builds protein
39
What do the transfer RNA do
caries specific amino acids
40
What is the translation RNA made of
protein
41
What does the mRNA do in translation
carries code from nucleus to cytoplasm
42
What couples with mRNA in translation
ribosomes
43
what do the tRNA do in translation
bring in appropriate amino acids