Karyotyping
http://learn.genetics.utah.edu/
Go to GENETICS > CHROMOSOMES AND INHERITANCE > KARYOTYPES
Click: HOW DO SCIENTISTS READ CHROMOSOMSES
1. What are the three key features used to read chromosomes?
2. What are centromeres used for?
3. Sketch and describe: metacentric, submetacentric and acrocentric centromere positions.
Click: MAKE A KARYOTYPE
4. Describe how the chromosomes are arranged by scientists when making karyotypes.
5. How can you tell the gender of a person by looking at a karyotype?
6. Create your own karyotype – turning on hints is ok.
Check this box when your karyotype is complete
7. What did you find difficult about matching the chromosomes?
Click: USING KARYOTYPES TO PREDICT GENETIC DISORDERS
8. A regular human cell has how many chromosomes?
9. How many human chromosomes are autosomes?
10. What does autosome mean?
11. What is nondisjunction?
12. What is trisomy?
13. What is monosomy?
14. What is it called when a chromosomes is missing some genetic material?
15. What is it called when part of a chromosome breaks off and reattaches to another non-homologous chromosome?
You will need to use a separate sheet of paper to complete 16.
16. Do the following for each of the Disorders listed below:
- General description of the disorder
- Description of the symptoms
- How it is diagnosed and treated
- Interesting facts
Klinefelter syndrome
Turner syndrome
Down syndrome
Cri-du-Chat syndrome
Williams syndrome