People with a mutation in the gene encoding the enzyme hexosaminidase a have the disease these people suffer from

Ineed to know why d is the correct answer asap

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?