In what stage of cellular respiration is most of the carbon dioxide produced?

How do you transfer mrna into codons ? i'm so confused : (

If two parents who's blood types are both b produce a child that has blood type o, what can you say about the parent's genotybes? oa) one is ii ob) one is ibi oc) both are bi od) nothing, this is impossible

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions