Degenerate - more than one code for each of the 20 amino acids produced. Punctuated - start and stop signals from codons. Linear - runs in sequential order.
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What are the last three features of DPLANT?
Almost universal - all cells with DNA have the triplet code apart from prokaryotes and chloroplasts. Non-overlapping - triplets are in definite blocks of three. Triplet - each of the 20 amino acids represented by triplets.
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What is a gene?
Section of DNA containing coded information for making polypeptides
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What does a gene do?
Determines proteins of an organism from sequences of amino acids.
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What is the triplet code?
Every 3 base pairs make up a codon which codes for an amino acid
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What results due to 4 different bases?
Different orders of bases, different amino acid orders, different proteins
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What happens in there is a change in base order?
Change in base order = change in amino acids = change in bonds = change in tertiary structure = different protein shape formed = may not work
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What is an intron? How do they make genetic disorders?
Has no code for amino acids. If codes are in the wrong order due to introns, genetic disorders occur.
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Other cards in this set
Card 2
Front
What are the last three features of DPLANT?
Back
Almost universal - all cells with DNA have the triplet code apart from prokaryotes and chloroplasts. Non-overlapping - triplets are in definite blocks of three. Triplet - each of the 20 amino acids represented by triplets.
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