User:Anilapuli/Chromosome abnormality

Almost single cell in our body is made up of two of the 46 chromosomal pairs that make up our whole body. Chromosomes 23 are made up of 2 x or x and Y. The body's chromosomes hold all the information required for growth and development. Chromosomes abnormalities can be broadly divided into two categories: structural and numerical. Numerical abnormalities are entire chromosomes that are missing or more than a normal pair. A portion of a chromosome that has structural abnormalities may be absent, added, moved to another chromosome, or the opposite.

Sometimes chromosomal abnormalities arise in the early stages of an embryo, sperm, or infant. A mother's age is one of the many environmental factors that might lead to genetic mistakes. The implications of chromosomal abnormalities Depend on the specific problem, they may have quite different ramifications. For example, Down syndrome is caused by an extra copy of chromosome 21. That can cause Miscarriages, problems with growth or development, and illnesses.

The kind of chromosomal aberration is aneuploidy, which is an abnormal number of chromosomes produced by a missing chromosome. Rather than having monosomy, or only one copy, the majority of aneuploid people have trisomy, or three copies of one chromosome. Down syndrome is probably the best-known example of chromosomal abnormalities. In addition to trisomy 21, other primary chromosomal abnormalities observed in live newborns include Turner syndrome, Klinefelter syndrome.