Photogram

blood group rh-factor positive rhesus factor deoxyribonucleic acid plasma blood plasma dna a drop of blood blood donation rh positive

54

8

blood group and rh a positive rh factor rh positive blood donation a drop of blood

14

2

blood group rh factor negative a drop of blood blood donation rh negative

14

3

a drop of blood blood group rh factor rh negative blood donation

6

1