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How is galactosemia a genetic disorder?

1 doctor weighed in
Dr. James Ferguson
Pediatrics

In brief: Recessive defect

Our parents give us genetic information in gene pairs at conception.
If a critical enzyme can be produced with information from just one gene, it is called dominant. Parents who carry one bad gene in a pair don't have symptoms, but can pass the bad gene to baby. If baby gets 2 bad genes at conception, they cannot make the enzyme.Galactosemia results from inheriting recessive bad genes.

In brief: Recessive defect

Our parents give us genetic information in gene pairs at conception.
If a critical enzyme can be produced with information from just one gene, it is called dominant. Parents who carry one bad gene in a pair don't have symptoms, but can pass the bad gene to baby. If baby gets 2 bad genes at conception, they cannot make the enzyme.Galactosemia results from inheriting recessive bad genes.
Dr. James Ferguson
Dr. James Ferguson
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