Tay sach's disease is a fatal genetic condition, in which affected individuals cannot metabolize fats properly. children who inherit the disease rarely live past the age of five. the disease is caused by the presence of a homozygous recessive gene. if a child has tay sach's disease, what would her parents' genotypes be?

Father: Heterozygous Mother: Heterozygous

Explanation:

There'd be a 25% chance of the child getting Tay Sach's disease. Both parents would have to be heterozygous because in order for the child to receive the disease, they'd require a homozygous recessive gene. Neither parent could be homozygous recessive because, unfortunately, they would've more than likely died as children.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation: