SD region in prokaryotic mRNA is a part of ______.
TATA BOX
RBS (Ribosome Binding Site)
ASD region
Promoter
The Shine-Dalgarno (SD) region is a ribosomal binding site in prokaryotic messenger RNA, generally located around 8 bases upstream of the start codon AUG. The RNA sequence helps recruit the ribosome to the messenger RNA. Hence, the correct answer is option 2.