Question

Makali has very little GALT activity, which supports a diagnosis of classic (type 1) galactosemia. Considering both the prevalence of lactose intolerance and Makali's ancestry, is it more likely that he is lactose tolerant or intolerant? Normally, type 1 is the most severe form of galactosemia. Because Makali has some enzyme activity and because he has serendipitously avoided galactose all his life through his diet in Papua New Guinea, he has only developed muscle spasms and tremors, which are the mildest symptoms of the disorder. It is more likely that he is lactose tolerant. It is more likely that he is lactose intolerant. There is an equal chance that he is lactose tolerant or intolerant. There is a 100% chance that he is lactose tolerant because he has galactosemia. There is a 100% chance that he is lactose intolerant because he has galactosemia. These symptoms are likely the result of neurological damage that occurred in infancy before he stopped drinking milk entirely. O Recall that you were unable to administer a lactose tolerance test on Makali because of the risk to his health.

Answer 1

There is a 100% chance that he is lactose tolerant because he has galactosemia. This is because when the lactose is given to the person, inside the body it breaks down into glucose and galactase by the action of enzyme lactase. So, it is clear that he is not lactose intolerant and his body is able to digest it but the problem lies with his galactase digestion. So, this galactase intolerance is known as galactosemia.