Added: 12/15/2005 |
Understand the Genetic Diagnosing Described in Genetic 101Couples are usually forced to make the decisions that influence their families. They don't need ethical 'experts' to see any moral idea in their decisions. People usually don't have to display rational judgment of serious decisions. Sometimes, the option chosen by a couple may step against the public opinion. It is even possible to imagine a situation when any person may have a feeling of being outsider, making decision to use PGD technology.
Many of us will be confused by the thought of a couple who has a deaf child. But most of us will be against any attempt to impose regulations in the chromosome abnormalities that can lead to means that a couple couldn't 'naturally' refuse of a child even though he/she was born disabled. And we would be certainly against compulsory abortion because of a positive diagnosis of a genetic problem and single gene abnormalities. Our views should be followed with a principle that people should be free to make their own decisions.
According to the genetic 101, chromosome abnormality appears when there are a bit more or a bit less chromosomes in it. More often disease represented by genetic 101 of a chromosomal abnormality is Down's syndrome. It may be diagnosed when there are more chromosomes in the cells. Another example of the chromosomal abnormality is Turner's syndrome and Klinefelter`s syndrome, as a result of which children can be with defects and alike disabilities since their birth.
Other chromosomal abnormality represents the existence of one more chromosome, which can cause a disability to carry a child during early pregnancy. A chance to have an abnormal pregnancy increases when a woman becomes older. There could be a permanent existing of chromosome abnormalities in embryos and a chance of such a diagnosis increases when a woman becomes older, too. The genetic 101 also proves that there are advantages of the pre-implantation genetic technology for chromosomal abnormality, and it makes possible the transferring only normal embryos to achieve more positive pregnancies and lessen the number of pregnancy losses and disabled children.
Most couples who think that they have a danger of having a disabled child may be defined by looking through the family history and the fact of having already an affected child. The majority of couples who consider that they can have a disabled child of a definite sex should know that it can be caused by a change inside one gene on the X chromosome and usually may have an affect only on the children of the male gender.
As the genetic 101 shows, it happens because they have only one X chromosome, which usually a child's mother can give to her child, while they get a Y chromosome from their father. Since the male gendered child has only one chromosome called X only a single gene abnormality can develop the disability. In this type of genetic transferring the disorders such as Dystrophy of Duchene Muscular, hemophilia, and some types of hydrocephalus may have a chance to appear. These women are called "carriers" and have a risk for transferring the abnormal gene to children. If that child is a girl who gets the gene, she also may be a carrier.
On the other hand, the concern that PGD devalues the lives of individuals affected by a genetic abnormality should categorically reject. The choices that people make about their own lives and families do not represent a statement about other people.
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