BIO EXAM 2 Flashcards

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1
Q

HELICASES

A

UNDWINDS DNA

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2
Q

SPBP

A

DNA TRANSCRIPTION
HOLDS DNA TOGETHER

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3
Q

TOPOISOMERE

A

DNA TRANSCRIPTION
Relieves tension generated by the unwinding of the double helix dna strand

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4
Q

DNA POLYMERASE 1

A

DNA TRANSCRIPTION/ REMOVES PRIMER

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5
Q

DONA POLYMERASE 2

A

DNA TRANSCRIPTION/ ADD 3 NEW NUCLEOTIDES

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6
Q

LIGASE

A

REPLICATION/ JOINS FRAGEMENTS OF NEWLY SYNTHESIZED DNA TO FORM A NEW SEAMLESS STRAND

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7
Q

RNA POLYMERASE 2

A

TRANSCRIBES POLYPEPTIDE CODING GENES INTO MRNA

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8
Q

WHAT does rna splicing not happen at

A

at the chromosomes levels

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9
Q

trna

A

translation brings amino acid and places them in the correct place to create protein

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10
Q

mrna

A

transcription
carries genetic information to the rest of the cells

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11
Q

Rrna

A

protein synthesis/ stitches amino acid together to make proteins

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12
Q

Aminoacyl-tRNA synthetase

A

PAIRS Trna with their cognate amino acid

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13
Q

activators

A

dna transcription/ a protein that binds to dna and stimulates transcription of gene expression

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14
Q

repressors

A

transcriptions/ turns off or redces gene expression

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15
Q

transcription factors

A

converst rna into dna

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16
Q

srp

A

delivery protein / translation

17
Q

spliceosomes

A

mrna transcription. only found in eukaryotes,
removes introns from pre mrna to make rna