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AP Bio > Unit 6- General 1/2 Review > Flashcards

Unit 6- General 1/2 Review Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

DNA strands are

A

antiparallel, meaning one strand runs 3’ to 5’, while the other strand runs from 5’ to 3’.

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2
Q

Which model of DNA replication was supported by Meselson and Strahl

A

Semi-conservative

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3
Q

Primase

A

initiates replication by adding short segments of RNA called primers to the parental DNA strand

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4
Q

DNA Ligase

A

joins the okazaki fragments, forming a continuous dna strand

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5
Q

What is the central dogma theory

A

dna-rna-proteins

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6
Q

Information goes from dna-

A

rna-proteins

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7
Q

3 differences between DNA and RNA (composition, shape)

A
  1. bases t vs u
  2. double vs single stranded
  3. ribonucleic acid vs deoxyribonucleic acid
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8
Q

What is the location of dna in eukaryotes and prokaryotes?

A

e- nucleus, e-nucleoid

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9
Q

What is the location of rna in eukaryotes and prokaryotes?

A

e- nucleiod, p-cytoplasm

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10
Q

What is the function of dna vs rna?

A

DNA- genetic information stored in and passed down through generations

RNA- primary source of heritable information in some viruses

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11
Q

How many codons are there?

A

64

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12
Q

How many codons code for amino acids?

A

61

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13
Q

How many amino acids are there?

A

22

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14
Q

What is redundancy?

A

-# of amino acids is not equal to # of codons

-More than one codon code for each amino acid.

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15
Q

Redundancy does what?

A

Helps protect from mutation.

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16
Q

What is no ambiguity?

A

One codon cannot code for different amino acids.

17
Q

Transcription

A

Transcribes information from the DNA & allows information from the nucleus to be translated into a protein.

18
Q

What is the difference between initiation in eukaryotes vs prokaryotes?

A

E- RNA Polymerase binds directly to the promoter.

P- Transcription factors help it bind to the promoter.

AP Bio (6 decks)

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