Like trisomy 21, mosaic Down syndrome is not inherited. It occurs as a random event during cell division early in fetal development. As a result, some of the body's cells have the usual two copies of chromosome 21, and other cells have three copies of this chromosome.
1 An average cost for a cubic yard of concrete is $75 to $125, depending on how much is needed and local prices. 2  Labor costs to pour and form concrete run somewhere around $3.50 to $7.00 per square foot.3  One homeowner paid $11,000 for a crawl space for a 1,500 square foot home. An average cost for a cubic yard of concrete is $75 to $125, depending on how much is needed and local prices. 2  Labor costs to pour and form concrete run somewhere around $3.50 to $7.00 per square foot.
Approximate cost for labor to pour & finish concrete. I am in the EARLY planning stages for a backyard makeover guys. I am looking for a ballpark figure for labor only to pour two concrete slabs, 8x8 ft and 12x8 ft. Both 6in deep with 12x12 footings on 6 8ft sides and 1 12ft side. 8th side is to be drilled and rebarred to existing slab. I figure total to be about 5.56 cubic yards to pour and finish.