Question

If you compare the Kozak sequence with the SD sequence of the prokaryotes which is located at the greater distance from the start site?

(a) Equal distance

(b) Kozak

(c) Shine and Dalgarno sequence

(d) Both are too far to account

The question was asked in class test.

My doubt stems from Initiation topic in section Gene Expression : Translation of Cytogenetics

Answer 1

Correct choice is (c) Shine and Dalgarno sequence

To explain: Eukaryotes are not polycistronic and the 5’ cap corresponds to the 5’ end of the mRNA near which it must start translating. Although there is not much defined sequence but all the same there is a consensus.