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Karyotypes

Karyotypes. What are they?. What each of the human chromosomes look like. Karyotype. A picture of chromosomes arranged according to a standard classification. Karyotype. Chromosomes are digitally arranged so that they are matched with their homologue or “partner” chromosome

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Karyotypes

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  1. Karyotypes What are they?

  2. What each of the human chromosomes look like

  3. Karyotype • A picture of chromosomes arranged according to a standard classification

  4. Karyotype • Chromosomes are digitally arranged so that they are matched with their homologue or “partner” chromosome • Homologue chromosomes are the same size, shape and carry the same genes, and one is inherited from each parent • They are numbered according to size

  5. Sex determination with karyotype • This karyotype has 23 exact pairs, which means the person is female • Note that #23 chromosomes are both X

  6. Normal Human Male • Note that #23 chromosomes are X and Y

  7. Is this person female or male?

  8. Trisomy 21 • Abnormality shown in karyotype • Note that there are three copies of #21 chromosome • This person has Down Syndrome.

  9. Monosomy X • Abnormality shown in karyotype • Note this person only has 1 copy of the X chromosome • This female has Turner’s syndrome

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