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BCOR 1400 > Bio Exam 2 (Chapter 17) > Flashcards

Bio Exam 2 (Chapter 17) Flashcards

1
Q

What is the order of protein synthesis?

A

Transcription, RNA processing, Translation

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1
Q

What is the initiation, elongation and, termination of the RNA transcript?

A

Transcription

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2
Q

What converts the mRNA sequence to an amino acid sequence/polypeptide?

A

Translation

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3
Q

What are the Three steps of transcription?

A

Initiation, elongation, and termination

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4
Q

What is it when RNA splicing where large portions of the RNA primary transcripts are removed, and the remaining portions are reconnected?

A

Alteration of mRNA

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5
Q

What are coding sequences in eukaryotes, expressed sequences and translate into proteins?

A

Exons

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6
Q

What are non coding sequences, intervening sequences, and thus are cut out?

A

Introns

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7
Q

What is The removal of intros is done through a large complex or proteins and small RNAs called?

A

spliceosome

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8
Q

After processing, mRNA is ready to be moved to the cytoplasm for what?

A

Translation

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9
Q

What carries the genetic message from DNA to protein; carry codons for translation?

A

mRNA

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10
Q

What is a DNA or RNA sequence of three nucleotides (a trinucleotide) that forms a unit of genomic information?

A

Codon

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11
Q

What molecule brings amino acids to to ribosomes to synthesize dna

A

tRNA

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12
Q

What with ribosomes, direct the catalytic steps of protein synthesis, stitching aa together to make a protein molecule?

A

rRNA

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13
Q

What are the two units of a ribosome?

A

Large subunit, and small subunit

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14
Q

What are the three translation steps?

A

Initiation, Elongation, and Termination

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15
Q

What is the site of translation: mRNA -> polypeptide chain

A

Ribosomes

16
Q

What is any change in DNA nucleotide sequences?

A

Mutations

17
Q

What physical or chemical agents that can cause mutations?

A

Mutagens

BCOR 1400 (6 decks)

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