A
he cross bred them and learned about recessive and dominate traits
Do you mean ion pumps in the membrane of cell?
If so, then ion pumps maintain an electrochemical gradient across the membrane.
1. There is a 50% chance that the child will have blue eyes.
2. The pair of alleles would be homozygous.
Answer:
enzyme active site mutation
Explanation:
the enzymes in stomach don't bind with the substrate and therefore she cant break it down