Protein synthesis

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In transcription what attaches to the DNA?
RNA polymerase
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What breaks between the paired bases?
hydrogen bonds
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What unwinds?
DNA
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What pairs with what in transcription?
RNA nucleotides with bases complementary to those on the template strand of the DNA
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What do they form?
an mRNA molecule
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What happens after this happens?
the mRNA molecule leaves the nucleus through a pore in the nuclear envelope
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What does it attach to?
a ribosome
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Where does translation occur?
on the surface of the ribosome
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What are ribosomes made up of?
2 sub units
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What subunit does the mRNA bind to?
smaller subunit
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What does the tRNA bind to?
larger unit
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What is one side of the tRNA molecule?
an anticodon
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What is the start code?
AUG
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What does the ribosome do?
holds the mRNA, tRNAs, amino acids and associated enzyme in place while a peptide bond forms between the two amino acids
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What is the peptide bond?
a condensation reaction
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between what?
amine group of one amino acid and the carboxylic acid group of the next
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what does this form?
dipeptide
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What is the first nature of the genetic code?
It reads as sequences of three bases- triplet code
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What is the second nature of the genetic code?
the code is non-overlapping
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What does this mean?
No base of one triplet contributes to part of the next triplet
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How else is the genetic code described?
degenerative
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What does this mean?
several triplets can code for the same amino acid.
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Other cards in this set

Card 2

Front

What breaks between the paired bases?

Back

hydrogen bonds

Card 3

Front

What unwinds?

Back

Preview of the front of card 3

Card 4

Front

What pairs with what in transcription?

Back

Preview of the front of card 4

Card 5

Front

What do they form?

Back

Preview of the front of card 5
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