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Question

Anitcodon is present on


A
rRNA
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B
mtRNA
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C
tRNA
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D
mRNA
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Solution

The correct option is C tRNA
All tRNAs have about 73 to 93 nucleotides that fold into four base-paired stems and three loops, a structure which looks like a clover leaf in secondary structure. it is "L" shaped in three-dimensional structure. The anticodon loop has triplet at the tip which base pairs with the corresponding codon in mRNA; option C is incorrect. Ribosomal RNAs (rRNAs) are structural constituents of ribosomes that provide the site for proteins synthesis; option A is wrong. Mitochondrial RNAs are a linear polymer, are transcribed from mitochondrial DNA and are translated in mitochondria itself. mRNA is the linear polymer of ribonucleotides which specify the amino acid sequence of one or more polypeptides; a set of three nucleotides forms a codon which in turn specifies a particular amino acid. Thus, the correct answer is C.

Biology

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