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Leucine in one of three amino acids whic...

Leucine in one of three amino acids which are coded by 6 codons. The codons that code leucine are CUU, CUC, CUA, CUG, UUA, UUG How may minimum types of t RNA will be required for reading all codons of leucine ?

A

1

B

2

C

4

D

6

Text Solution

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The correct Answer is:
B
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Name one amino acid, which is coded by only one codon.

Because most of the amino acids are represented by more than one codons, the genetic code is said to be

Knowledge Check

  • Some amino acids are coded by more than one codon, hence the genetic code is

    A
    overlapping
    B
    degenerate
    C
    wobbled
    D
    unambiguous

  • Read the following statements. (i) One codon codes for only one amino acid. (ii) Some amino acids are coded by more than one codon. (iii) The sequence of triplet nitrogenous bases in DNA of mRNA coresponds to the amino acid sequence in the polypeptide chain. Give , suitabel terms for the characteristics of 'genetic code' as per the above statements.

    A
    `{:("Degeneracy","Colinearity","Unambiguous"),("(i)","(iii)","(ii)"):}`
    B
    `{:("Degeneracy","Colinearity","Unambiguous"),("(iii)","(ii)","(i)"):}`
    C
    `{:("Degeneracy","Colinearity","Unambiguous"),("(ii)","(iii)","(i)"):}`
    D
    `{:("Degeneracy","Colinearity","Unambiguous"),("(i)","(ii)","(iii)"):}`

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    Assertion. The genetic code is degenerate. Reason. Most amino acids are coded by more than one codon.

    Amino acid Leucine is coded by 6 triplet codons: UUA, UUG, CUU, CUC, CUA and CUG. Which of the following is most relevant for the statement given?

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    Give one word - One codon codes for only one amino acid. The genetic code is ....

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