A couple are heterozygous for Tay-Sachs, a rare autosomal recessive disease that is fatal in infancy and results when a baby inherits two nonfunctional alleles of HEXA, the gene for the enzyme hexosaminidase A.The couple wants to ensure that the mother only becomes pregnant with a fertilized egg that is homozygous HEXA normal.A _______ screening test would best ensure that she did not become pregnant with another HEXA genotype.

Question

Quizplus · Accepted Answer

The Answer of A couple are heterozygous for Tay-Sachs, a rare autosomal recessive disease that is fatal in infancy and results when a baby inherits two nonfunctional alleles of HEXA, the gene for the enzyme hexosaminidase A.The couple wants to ensure that the mother only becomes pregnant with a fertilized egg that is homozygous HEXA normal.A _______ screening test would best ensure that she did not become pregnant with another HEXA genotype.

A Couple Are Heterozygous for Tay-Sachs, a Rare Autosomal Recessive