Questions
The small subunit of ribosome select the initial AUG codon of mRNA to be placed at its P site as opposed to some internal one in bacterial ribosome because of
a
presence of cap at the 5â of mRNA
b
presence of methylated A in the initiation codon
c
presence of TATA box
d
presence of ShineâDalgarno sequence a head of start codon.
detailed solution
Correct option is D
Bacterial mRNAs possess a specific sequence of nucleotides (called the ShineâDalgarno sequence after its discoverers) that resides five to 10 nucleotides before the initiation codon. The ShineâDalgarno sequence is complementary to a sequence of nucleotides near the 3 â² end of the 16S ribosomal RNA of the small ribosomal subunit.Talk to our academic expert!
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The process of polymerisation of amino acids to form a polypeptide is
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