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Chromosomal Abnormalities through Karyotype Analysis

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  1. Karyotype Investigating Chromosomal Abnormalities

  2. Karyotype • Mitosis is stopped at metaphase • Cells are stained with chemicals that reveal banding patterns in the chromosomes • Geneticists match up chromosome pairs to identify abnormalities

  3. Chromosomal Abnormalities • A karyotype may reveal missing, extra or broken chromosomes • Some abnormalities have little impact on a person’s life • Some abnormalities can affect growth and development (physical and or mental) • Severe abnormalities may cause death at a very early age.

  4. Trisomy 21 – Downs Syndrome

  5. Trisomy 13 – Patau Syndrome

  6. Turner Syndrome - only 1 X chromosome (females only)

  7. Kleinefelter Syndrome – XXY (males only)

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