Essay on Stem Cells

Submitted By MsMishaB
Words: 532
Pages: 3

Cystic Fibrosis Huntington’s Disease
Cystic fibrosis is a disease passed down through families that causes thick, sticky mucus to build up in the lungs, digestive tract, and other areas of the body. It is one of the most common chronic lung diseases in children and young adults. It is a life-threatening disorder. It is a recessive gene and you need two genes to inherit the disease, and if two carriers had four children at least one of them would have Cystic Fibrosis.

Huntington's disease is a disorder passed down through families in which nerve cells in certain parts of the brain waste away, or degenerate. It is a dominant gene so if one parent has it there children will have it, in the case of Huntington’s disease in the family tree is either you have it or you don’t. Huntington’s effects come in to place during early middle ages, which cases problems as they may have children who might get the disease.

There can be carriers for the disease. It is a recessive gene so you would need two from both parents to get the disease, you can also carry it through the family tree to the next generation it only stops when there are no more carriers.
A recessive allele only shows if the individual has two copies of the recessive allele. For example, the allele for blue eyes is recessive. There are no carriers for this gene, you have it or you do not. When you do have it, it will be fatal. If one parent has it then a child will have it or will not have it. If an extended-family member has the disease you will not get it unless your parents have it. A dominant allele always shows, even if the individual only has one copy of the allele. For example, the allele for brown eyes is dominant.
The protein is affected by CFTR cells which can be found in the genes. What this cell does is stop the healthy balance of water and salt in the body, this cause too much mucus to be developed in places like the lungs and other passage ways to organs. The mucus then…