What RNAs are associated with these functions. CHOOSE ONLY ONE FOR EACH an integ

Question

What RNAs are associated with these functions. CHOOSE ONLY ONE FOR EACH

an integral part of the structure and function of ribosomes

      [ Choose ]            tRNA            dsRNA            mRNA            hetRNA            siRNA            rRNA      

carries a sequence encoding a polypeptide

      [ Choose ]            tRNA            dsRNA            mRNA            hetRNA            siRNA            rRNA      

decodes the codon of a transcript

      [ Choose ]            tRNA            dsRNA            mRNA            hetRNA            siRNA            rRNA      

prevents an mRNA from being translated

Explanation / Answer

An integral part of the structure and function of ribosomes- rRNA

Carries a sequence encoding a polypeptide- tRNA

[tRNA contains anticodons, which bind to codons in mRNA, and amino acids corresponding to the codons]

Decodes the codon of a transcript- tRNA

[codons are present in mRNA. These codons bind complementarily to anticodons in tRNA)

Prevents an mRNA from being translated- dsRNA

[dsRNA is the one in which single-stranded mRNA is bound to another RNA with complementary base pairs. This blocks the expression of proteins from the mRNA]

[siRNA are small RNA molecules of 21-25 nucleotides. siRNA duplexes produced by Dicer. Out of the two strands, the one directs silencing of target mRNA is called guide RNA, whereas the other strand which is ultimately destroyed is called passenger strand. ]

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