1. Karyotyping

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

3. Normal Female Karyotype

4. Normal Male Karyotype

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

6. 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.

7. Abnormal Karyotype-Trisomy #21
Down Syndrome

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

10. 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.