Tay-Sachs disease is caused by a defective gene on chromosome 15. When both parents carry the defective Tay-Sachs gene, a child has a 25% chance of developing the disease. The child must receive two copies of the defective gene -- one from each parent -- in order to become sick.
Enacted by law in 2013, the newest symbols of North Carolina are the state art medium, clay; the state fossil, the Megalodon teeth; the state frog, the Pine Barrens tree frog; the state marsupial, the Virginia opossum; and the state salamander, the Marbled salamander.
The flag of the state of North Carolina is defined by law as follows â That the flag of North Carolina shall consist of a blue union, containing in the center thereof a white star with the letter N in gilt on the left and the letter C in gilt on the right of said star, the circle containing the same to be one-third the width of the union.