Dr. Khorana prepared an artificial mRNA containing $CUCUCUCUCU$ nucleotides; its translation resulted in the formation of a polypeptide chain bearing alternately arranged . . . . . . and . . . . . . amino acids,respectively.
- Aleucine,serine
- Bserine,leucine
- Cproline,glutamine
- Dglutamine and proline
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Khorana and his colleagues synthesized an $RNA$ molecule with a repeating sequence of $U$ and $G$ nucleotides. The $RNA$ sequence "$UGU\ GUG\ UGU\ GUG$" produced a tetrapeptide with alternating chains of cysteine and valine. The codons for cysteine and valine are, respectively:
Medium
View SolutionIn a $125$ amino acid sequence,if the codon for the $25^{\text{th}}$ amino acid is mutated to $UAA$,then:
First evidence for triplet genetic code was given by . . . . . . .
How many amino acids are encoded by only a single codon?
Medium
View SolutionWhich is the initiation codon for protein synthesis in eukaryotes?
MediumAIPMT 1993
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