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The genetic code is said to be degenerate because there are 64 different codons, but translation produces only 20 unique amino acids.  The degeneracy of the genetic code is due to which mechanism?A.Exclusion of protein coding regions from mature mRNAB.Errors during tRNA chargingC.Ambiguity of the tRNA for the amino acidD.Nontraditional base pairing of the anticodon with the third base of the codon

Question

The genetic code is said to be degenerate because there are 64 different codons, but translation produces only 20 unique amino acids.  The degeneracy of the genetic code is due to which mechanism?A.Exclusion of protein coding regions from mature mRNAB.Errors during tRNA chargingC.Ambiguity of the tRNA for the amino acidD.Nontraditional base pairing of the anticodon with the third base of the codon

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Solution

The degeneracy of the genetic code is due to D. Nontraditional base pairing of the anticodon with the third base of the codon.

This is known as "wobble base pairing". In this mechanism, the first two bases of the codon form traditional Watson-Crick base pairs with the anticodon of the tRNA, but the third base is allowed to "wobble", meaning it can form nontraditional base pairs. This allows a single tRNA to recognize more than one codon, which is why there are more codons than there are amino acids.

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Similar Questions

Why is degeneracy of the genetic code very important in protein synthesis?Group of answer choicesBecause of imprecision/wobble in the pairing of the third base of the anticodon, thus the presence of the unusual base, inosine.There is no inspection device at the third position, so more varied base-pairs are tolerated and therefore less mutations.Minimizes the deleterious effects of mutationsA and CAll of the above

What does it mean that the genetic code is redundant? That each codon codes for more than one amino acid That each codon can bind to more than one anticodon That most amino acids are coded by more than one codon That each tRNA anticodon can be attached to multiple different amino acids None of the above

The genetic code is said to be __________ because more than one codon will specify a particular amino acid. A. multiplicative B. degenerate C. repetitious D. ambiguous

Which of the following statements is true for the genetic code?The number of various amino acid types is higher than the number of various tRNA anticodons in a given cell type.One codon can determine various types of amino acids in the same cell.One amino acid type can be determined by various codon types in the same cell.The genetic code is universal and 100% identical, including also the coding of mitochondria.The operon model proves the overlapping nature of genetic coding.

When a base substitution mutation does not result in a change in the amino acid sequence of a protein (due to the degeneracy of the genetic code), we say that this mutation is:Multiple choice question.sense.silent.degenerate.beneficial.

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