THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Detailed explanation-1: -Usually one codon codes for a single amino acid. But exceptionally, more than one codon may code for the same amino acid e.g. GAA and GAG both code for glutamic acid. This property is called redundancy or degeneracy.
Detailed explanation-2: -Because there are only 20 different amino acids but 64 possible codons, most amino acids are indicated by more than one codon. (Note, however, that each codon represents only one amino acid or stop codon.)
Detailed explanation-3: -The genetic code is redundant, so that several codons represent the same single amino acid, but there are no ambiguities. There are no examples of a single codon within any genome that represents more than one amino acid.
Detailed explanation-4: -There are 64 different codons: 61 specify amino acids and 3 are used as stop signals.