Autosomal recessive diseases are genetic diseases that are passed to a child through both parents' chromosomes. Each person inherits 23 chromosomes from each parent and so has 23 pairs of chromosomes. Each chromosome contains genes.One or both of the chromosomes in a pair may contain a changed (mutated) gene that could cause a genetic disease. In an autosomal recessive disease, both chromosomes in a pair must have a changed gene for the person to have the disease.If only one chromosome has a changed gene, the person is a carrier and does not have symptoms.ach person inherits 23 chromosomes from each parent and so has 23 pairs of chromosomes. Each chromosome contains genes. One or both of the chromosomes in a pair may contain a changed (mutated) gene that could cause a genetic disease.
1 An asphalt driveway typically costs about $2 -$5 a square foot, $1,200 - $3,000 for a 12'x50' single-car driveway; or $25,000 -$50,000 for up to a quarter mile. Do-it-yourself supplies can cost $50 -$200 depending on the size and condition of the driveway, and the quality of the sealer. 2  Professional driveway sealing can cost $200 -$500 or more.
Angieâs List members recently reported paying an average of $5,308, with a pricing range between $4,500 and $6,100. The average cost of a concrete driveway, by comparison, is almost $7,400. CostHelper estimates the cost to install an asphalt driveway to be between $2,300 and $10,300. Homeowners typically pay per square foot. Reibling adds the average cost per square foot is between $3.50 and $4.50. Some asphalt contractors may charge by the ton, with the cost ranging from $100 to $150 per ton.