Experiments done to the Hox13a gene in fish suggest that...

Last updated: 8/7/2022

Experiments done to the Hox13a gene in fish suggest that... The genes needed to form the primitive amphibian hand were not even present to be able to modify unttil after land was colonized by the first amphi The genes needed to form the primitive amphibian hand were already present in fish, and only needed to be modified to form the primitive hand.