
Cecilia N. answered 03/25/20
Biology tutor specializing in genetics
The correct answer to this question is heredity. One way to remember this is to think about how you can inherit certain traits from your parents.
Allelic transfer happens during meiosis when two homologous chromosomes swap alleles with each other (also known as crossing over).
Co-dominance is a form of gene expression. You can find one example of co-dominance in blood type- blood type A and B are co-dominant to each other. If you have an allele for blood type A and an allele for blood type B, then your blood type will be AB.
Dominance is another form of gene expression, which also exists in blood type. Blood type A and blood type B is dominant over blood type O. For example, if you have an allele for blood type A and an allele for blood type O, then your blood type will just be A.