Which is True Regarding Translation in Bacteria

Question

Which is true regarding translation in bacteria?
A)Translation begins with formation of the 30S initiation complex.
B)Translation ends when the Shine-Delgarno sequence is reached.
C)The 70S ribosome is composed of a 20S and 50S subunit.
D)All of the choices are correct.

Accepted Answer

Translation in bacteria begins with the formation of the 30S initiation complex, which involves the small ribosomal subunit (30S) binding to the mRNA. The Shine-Delgarno sequence helps in the alignment of the ribosome with the start codon, but translation ends when a stop codon is reached, not the Shine-Delgarno sequence. The 70S ribosome is composed of a 30S and a 50S subunit, not 20S and 50S.