The genetic code is said to be "degenerate" becausea. a single trna may couple a single mrna codon to multiple amino acids. b. a single codon in an mrna can couple to the anticodons of many different types of trnas. c. a single trna specific for a particular amino acid may respond to multiple codons in an mrna d. more than one type of trna can be charged with a particular amino acid.

The correct answer is option C. "A single tRNA specific for a particular amino acid may respond to multiple codons in an mRNA".

Explanation:

Genetic code is said to be "degenerate" because there are more codons than amino acids, which is possible because a single tRNA specific for a particular amino acid may respond to multiple codons in an mRNA. tRNA recognize the codons of the mRNA by a specific nucleotide sequence called anticodon, however the nucleotide sequence of the anticodon can recognize more than one codon sequence. This phenomenon takes place at the third position of the codon and is known as "wobble".

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it takes hundreds of years to become stable.

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