Question

Of the red cells listed, which has the most D antigen present?

1) Rh null
2) Dce/Dce
3) dce/dce
4) D–/D–

Answer 1

The red cells with the most D antigen present are Rh null cells.

Step-by-step explanation:

The red cells with the most D antigen present are Rh null cells.

Of the red cells listed:

1. Rh null: These cells do not express any Rhesus antigens, including the D antigen. Therefore, they have the least amount of D antigen.
2. Dce/Dce: These cells have two copies of the Dce allele, which means they have a moderate amount of D antigen.
3. dce/dce: These cells do not have any copies of the D allele, so they do not have any D antigen.
4. D–/D–: These cells have two copies of the D– allele, which means they have no D antigen.

Therefore, Rh null cells have the most D antigen present.