Karyotyping.

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Presentation transcript:

Karyotyping

What is a Karyotype? A picture of your chromosomes How many chromosomes should a normal human have? 46 Chromosomes

Normal Female Karyotype

Normal Male Karyotype

Abnormal Karyotypes Shows a that a genetic disorder is present During meiosis, chromosomal mutations can occur One error is called nondisjunction

What happens if nondisjunction occurs? The zygote will die or result in conditions known as trisomy or monosomy. Trisomy - a person has more than 2 copies of the same chromosome. Monosomy – a person only has one copy of a chromosome.

Abnormal Karyotype-Trisomy #21 Down Syndrome

Abnormal Karyotype – Turner’s Syndrome Monosomy of the X chromosome

Draw the table below in your IN Disorder Description of Disorder How is the chromosome affected? 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.