What is karyotype? Why is it necessary?

What is karyotype test?

It is the test which is used to identify and evaluate the size, shape and number of chromosomes in a sample of body's cells. It helps to find abnormality of chromosomes pieces which are cause of problems with a person's growth and body functions.

A karyotype  is the number and appearance of chromosomes in the nucleus of a eukaryotic cell. The term is also used for the complete set of chromosomes in a species, or an individual organism. Karyotypes describe the number of chromosomes, and what they look like under a light microscope. Attention is paid to their length, the position of the centromeres, banding pattern, any differences between the sex chromosomes, and any other physical characteristics.The preparation and study of karyotypes is part of cytogenetics. ("Karyotype." Wikipedia, the Free Encyclopedia. Web. 19 Feb. 2012. <http://en.wikipedia.org/wiki/Karyotype>.)

Karyotyping is the system which is  used to help us to find genetic abnormalities like down's syndrome etc. It necessary for human future babies. At this point mother and father should decide together if it should be or not and if the baby has abnormality in his/her chromosomes they should decide what should happen in that situation too. This karyotyping test is critical step is to learn if someone has down syndrome or not. Baby who would have down syndrome have an extra number 21 chromosome. In that case karyotype test tells that which form of down syndrome your future baby has and what chance is to have another child with down syndrome.

If I found out that my future child had a chromosomal abnormality that would make him or her very different from other children, I would decide to not give birth to my child because it should  be worst than any new, to hear that your child has Down syndrome. After months of waiting for a healthy baby, your world is turned upside by the news and everything that you prepare for that baby the world that you create to yourself when you hear that your baby will have down syndrome would fall down. I don't think that make a person live with down syndrome is fair for that person and their family because he/she would not be happy and their both life would not be easy.