Which of the following is correct with respect to E.coli?

The genetic material of E.coli has 4.6x10⁶bp.

E.coli divides once in 20 minutes.

The majority of E. coli strains in the human digestive tract are harmless and even beneficial. They help with the digestion of food and produce certain vitamins, such as vitamin K, which is important for blood clotting. These strains are considered commensal bacteria and are not parasitic.