Unit 5 DNA and Protein Sythesis

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How does DNA hold a code?
DNA is a polymer made up of DNA Nucleotides. A Nucleotide consists of a phosphate, deoxribose sugar and a base (C,G -3, T, A -2)
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What Do we mean when we say DNA is Universal?
The same codon codes for the same amino acid in all organisms
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What do we mean when we say DNA is Degenerate?
Means that most amino acids have more than one codon
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What do we mean when we say DNA is Non-Overlapping?
Each base in the sequence is read only once.
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What is mRNA?
Messenger RNA, involved in Transcription. Single stranded, linear structure, no hydrogen bonds, RNA nucleotides, A,U,G,C, not very stable
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What is tRNA?
Transfer RNA, involved in Translation. Single stranded, clover shape, RNA nucleotides, hydrogen bonds, A,U,G,C, more stable than mRNA
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How are proteins made from the DNA code?
Proteins cannot be made where the DNA is - inside the nucleolus so the code needs to be copied out - this is translation, since we now have the opposite code we covert it once more in the ribosome with the help of tRNA to form proteins
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Card 2

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What Do we mean when we say DNA is Universal?

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The same codon codes for the same amino acid in all organisms

Card 3

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What do we mean when we say DNA is Degenerate?

Back

Preview of the front of card 3

Card 4

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What do we mean when we say DNA is Non-Overlapping?

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Preview of the front of card 4

Card 5

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What is mRNA?

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