Low my opion thanks ( I could be wrong )
D your nervous system controls your sleep cycles,breathing rate, body temperature it controls a lot.
I've never really known of a Second or Third canopy??? But if I had to choose one it would C. Double check just to make sure thou.
Answer: 75% probability that the child will not be a carrier.
Explanation: The Tay-Sachs disease is caused by mutation of the HEXA gene.
Tay–Sachs disease is an autosomal recessive genetic disorder, meaning that when both parents are carriers, there is a 25% risk of giving birth to an affected child with each pregnancy. A mutated copy of the gene is passed from each parent to the affected child. The causes are Genetic.
