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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?

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Answer:

As Tay-Sachs disease is a autosomal recessive disease, if both the parents are carrier then [tex]\frac{1}{4}[/tex] child will be normal [tex]\frac{1}{2}[/tex] child will be carrier and [tex]\frac{1}{4}[/tex] child will be affected to this disease.

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.
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