Question

Tay-Sachs Disease (TSD) is a neurological disease that is autosomal recessive. If a mother and father are both unaffected carriers for this gene, what will be true of their offspring?

Answer 1

As Tay-Sachs disease is a autosomal recessive disease, if both the parents are carrier then
`(1)/(4)` child will be normal
`(1)/(2)` child will be carrier and
`(1)/(4)` child will be affected to this disease.

Step-by-step explanation:

Characters of autosomal recessive disease

• If both two alleles are affected then only the organism will be affected for the disease.
• if only one allele is affected then the organism will be affected.

• Unaffected carrier parents have all affected, unaffected and carrier children.
• consanguineous marriage.
• most of the children will be unaffected.