OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Start Codon Site
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Synthesis Codon site
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Stop Codon Site
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Ribosome Binding Site
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Detailed explanation-1: -The Shine–Dalgarno (SD) sequence is a ribosomal binding site in bacterial and archaeal messenger RNA, generally located around 8 bases upstream of the start codon AUG. The RNA sequence helps recruit the ribosome to the messenger RNA (mRNA) to initiate protein synthesis by aligning the ribosome with the start codon.
Detailed explanation-2: -Shine-Dalgarno (SD) sequences, the core element of prokaryotic ribosome-binding sites, facilitate mRNA translation by base-pair interaction with the anti-SD (aSD) sequence of 16S rRNA.
Detailed explanation-3: -A typical RBS sequence is located about 6 nucleotides upstream of a start codon in an mRNA. The ribosomal holoenzyme binds to both the RBS and the start codon. The start codon and everything downstream are translated by the ribosome.