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KARYOTYPING

Karyotyping refers to use of a microscope to examine the size, shape, And number of Chromosomes in a sample of body cells. Extra, missing, Or abnormal positions of chromosome pieces can cause problems with a persons growth, development, and body functions.

In karyotyping, the chromosomes in a cell are stained with a dye to make the bands of each chromosome visible. Banding helps show differences in structure among the chromosomes and helps arrange them into pairs. The chromosomes are then photographed through the microscope. The information also can be entered into a computer that displays a picture (karyotype) of the chromosomes arranged in a specific order, from the largest to the smallest. The picture of all of the chromosomes is enlarged and studied for specific chromosome abnormalities.

Most cells in the body have identical chromosome pairs. However, egg and sperm cells have only 23 chromosomes, and mature red blood cells do not contain any chromosomes at......

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Approximate Pages: 3 (250 words per double-spaced page)

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