Which one of following pairs of codons is correctly matched with their function or signal for partic

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5.Molecular Basis of Inheritance

medium

Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?

$AUG, ACG$ - Start/methionine

$UUA, UCA $ - Leucine

$GUU, GCU$ - Alanine

$UAG, UGA$ - Stop

(AIPMT-2008)

Solution

(d) : $AUG$ codes for methionine and is initiation or start codon which starts the synthesis of polypeptide. $UAA$ (ochre), $UAG$ (amber) and $UGA$ (opal) do not specify any amino acid so they are called termination codons. $CUU, CUC, CUA$ and $CUG$ codes for leucine whereas $GCU, GCC, GCA$ and $GCG$ codes for alanine.

Standard 12

Biology

If there are $999$ bases in an $RNA$ that code for a protein with $333$ amino acids, and the base at position $901$ is deleted such that the length of the $RNA$ becomes $998$ bases, how many codons will be altered?

medium

(NEET-2017)

Select the incorrect statement(s).

$i.$ Six codons do not code for any amino acid.

$ii.$ Codon is read in $mRNA$ in a contiguous fashion.

$iii.$ Three codons function as stop codons.

$iv.$ The initiation codon $AUG$ codes for methionine.

medium

State the salient features of genetic code.

medium

How did Genetic code came into existance ?

medium

A single base mutation in a gene may not ‘always’ result in loss or gain of function. Do you think the statement is correct ? Defend your answer.

medium

Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?

Solution

Similar Questions

If there are $999$ bases in an $RNA$ that code for a protein with $333$ amino acids, and the base at position $901$ is deleted such that the length of the $RNA$ becomes $998$ bases, how many codons will be altered?

Select the incorrect statement(s). $i.$ Six codons do not code for any amino acid. $ii.$ Codon is read in $mRNA$ in a contiguous fashion. $iii.$ Three codons function as stop codons. $iv.$ The initiation codon $AUG$ codes for methionine.

State the salient features of genetic code.

How did Genetic code came into existance ?

A single base mutation in a gene may not ‘always’ result in loss or gain of function. Do you think the statement is correct ? Defend your answer.

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Select the incorrect statement(s).

$i.$ Six codons do not code for any amino acid.

$ii.$ Codon is read in $mRNA$ in a contiguous fashion.

$iii.$ Three codons function as stop codons.

$iv.$ The initiation codon $AUG$ codes for methionine.