Collards, spinach, turnips and fortified cereals are all good sources of which nutrient?

Writing, you can revisit previous parts of the lesson by returning to the course map. be sure to refer to the lab’s student guide, which you can find on the first page of the lab experiment activity

Iam not sure but to me it with be a or dsorry if i was late! hope this ! : )if you really want me to find out the answer that is correct tell me and i will do more research but the a or d makes sense to me.

A) the sequence of bases would halt the production of any proteins. 

It has been around since 1858 so b. false