Boys have an X and Y chromosome. Girls have 2 X chromosomes. Turner Syndrome is a chromosomal disorder in girls in which part or all of one of the X-chromosomes is missing. This loss of genetic material causes 2 primary features: namely, short stature and underdeveloped ovaries causing delayed or absent puberty.urner syndrome occurs when a female is missing part of, or an entire, X chromosome at birth. Normally, girls have two X chromosomes that contain the genetic information needed to develop sexual characteristics.
Lower output and/or mid-efficiency gas boilers cost $2,500 to $5,000 installed; higher output and/or high-efficiency gas boiler replacement cost is $5,000 to $10,000 or more. This price should include removal and disposal of the old boiler.
1 This price should include removal and disposal of the old boiler. 2  High-efficiency gas boiler installation may require the addition of a chimney liner at a cost of $500 to $2,000. 3  If removing and disposing of the old oil tank is requiredâand not included in the initial estimateâthis could cost $500 to $2,500 or more. High-efficiency gas boiler installation may require the addition of a chimney liner at a cost of $500 to $2,000. 2  If removing and disposing of the old oil tank is requiredâand not included in the initial estimateâthis could cost $500 to $2,500 or more. 3  Annual boiler maintenance and inspection costs $100 to $300.