Question

The genetic code is non-overlapping. This means: Group of answer choices A. Each nucleotide is used...

The genetic code is non-overlapping. This means:

Group of answer choices

A. Each nucleotide is used in one codon

B. Each nucleotide can be used in only two codons

Each nucleotide can be used in one to three codons

Homework Answers

Answer #1

ANS . Genetic code is the relationship between the sequence of nucleotides on mRNA and sequence of amino acids in the polypeptide .The genetic codes features are -

1. The codons are triplet , out of 64 codons , 61 code for 20 amino acids and 3 codons (UAA,UGA,UAG) donot code for any amino acid hence act as stop codons.

2. One codon codes for only one particular amino acid hence code is unambigous

3. Some amino acids are coded by more than one codon hence code is degenerate

4. The codon is commaless

5. The genetic code is nearly universal

6. The genetic code is non over lapping because each codon is read in a sequence , separate from the codon before it and after it .Codons donot share their bases hence non overlapping. so, correct option is( A ) each nucleotide is used in one codon means a single nucleotide can not be the end of one codon and beginning of next codon.

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