Shine-Dalgarno sequence in bacterial mRNA is near: (A) AUG codon, (B) UAA codon, (C) UAG codon, (D) UGA codon
Answer is A. SD sequence is located-6 to -10 bp from initiating AUG codon on m-RNA molecule near its 5' end. It is seen in prokaryotes only.
Kozak consenses sequence is present in eukaryotes. This sequence surrounds AUG & determines the initiating codon of m-RNA.