Question

Select the statements that best explain Makali's GALT activity levels? Makali may have a mutation in the gene that encodes galactokinase. Makali may produce no GALT enzyme. Makali may have normal amounts of GALT, but the enzyme may be mutated. Makali may produce only small amounts of a non-mutated (wild-type) GALT enzyme.

Answer 1

Answer:

Makali may produce only small amounts of a non-mutated (wild-type) GALT enzyme.

Makali may have normal amounts of GALT, but the enzyme may be mutated.

Explanation:

Makali is lactose intolerant because of his ancestry. Because of this he is not able to digest any lactose which indirectly protected him from galactosemia. Thus he must avoid consuming galactose. He has a low GALT or galactose 1‑phosphate uridylyltransferase activity. He has a normal amount of GALT and may produce only small amounts.