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.
NCCI Codes | Index of Codes and Phraseology by State. NCCI codes are four digit codes, produced by the the National Council on Compensation Insurance, used to classify businesses for workersâ compensation insurance. For example, a roofer would be considered NCCI code â5551â.