The diagram below illustrates the secondary structure of the 16S ribosomal RNA (
ID: 60708 • Letter: T
Question
The diagram below illustrates the secondary structure of the 16S ribosomal RNA (rRNA) of the small ribosomal subunit. After examining its structure, identify the reasons why the complex secondary structure of rRNA is important. The many loops present assist the ribosome in binding to the wall of the golgi apparatus to hold the ribosome in place during translation. Extensive double-stranded regions result in double-helical portions of the molecule. The major grooves of the helices serve as binding sites for transcriptional enzymes. Extensive double-stranded regions affect the shape of each ribosomal subunit. The shapes of the subunits facilitate the formation of peptide bonds between amino acids. The many hairpin-loop structures facilitates complementary base pairing during the process of rRNA replication. The many hairpin-loop structures affect the shape of the molecule. The shape is important in facilitating interactions with other rRNAs that make up the ribosome. Extensive double-stranded regions form double-helical portions of the molecule. The major grooves of the helices facilitate interactions with ribosomal proteins. Using the codon table below, determine the number of unique RNA sequences that encode the polypeptide methionine-valine-arginine. Include start and stop codons as appropriate.Explanation / Answer
1. From the top, the third, fifth and sixth options are correct.
2. Start(Met)- Valine - Arginine - STOP - Answer = 24
how? 1(MEt)*4(Valine)*6(Arg) = 24