Go to biology.arizona.edu They have a ton of stuff on blood types. I don’t know if this will help because I’m not in biology yet but I’ve been there and it helped a lot with some stuff. Hopefully that didn’t sound to vague. Have a wonderful day.
This <span>statement should be classified as</span> a theory
Phoebus Levene was the one who proposed <span>the polynucleotide model stating that dna and rna were composed</span>
