Identify the type of each genetic disorder. Cystic fibrosis:
Hemophilia:
Duchenne muscular dystrophy:
Huntington's disease:

Cystic fibrosis: autosomal and recessive; the most common lethal genetic disorder in US; 1/25 (4%) of Caucasians is a carrier; caused by a mutation on chromosome 7; the normal allele for this gene is involved in cellular chloride ion transport; the mutation results in a high concentration of extracellular chloride; characterized by a buildup of a secretion of thick mucus which accumulates in the lungs and digestive tract; if untreated, children with CF die at a young age

Hemophilia: sex-linked and recessive; missing one or more proteins necessary for normal blood clotting; when victims are cut, a firm clot is slow to form; bleeding in the muscles are joints are common and painful; 1/10,000 males are born with a form of this disorder

Duchenne muscular dystrophy: sex-linked and recessive; affects 1/3500 males born in US; missing an essential muscle protein called "dystrophin"; resulting in deteriorating muscles and a loss of coordination; victims rarely live past their early 20s

Huntington's disease: autosomal and dominant; this fatal disease begins to be expressed in middle age; a degenerative disease of the nervous system; loss of motor control progressing to total physical and mental incapability; results in certain and early death; individuals with this condition have a 50% chance of passing it onto their offspring

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they have identical fossils of organisms that have evolved over time.

both have animal fossils preserved in them due to weathering and erosion.

they contain different fossils because life on earth has changed through time.

the fossils in them were formed on the surface of earth due to exposure to sunlight.

answer; heredity;