Human Internet Karyotyping Assignment
Name:
Type in:
http://www.biology.arizona.edu/human_bio/activities/karyotyping/karyotyping.html
Read the introduction and answer the following:
1. How are banding patterns created on human chromosomes?
2. What regions of the DNA are being highlighted by banding patterns?
3. How much DNA is represented by a single thin band?
4. When setting up a karyotype, what criteria does one use to distinguish one chromosome from another?
Next, you will scroll to the bottom of the page and click on patient case histories.
Read the brief history of Case History of Patient A and complete his/her karyotype to discover what condition that
person has. (Look at the chromosome that is shown to the left of the instructions and find its homologous chromosome
in the incomplete karyotype below it; when you have found its partner, click on it and if correct the chromosomes will
be shown paired up. Continue with a new chromosome that appears until the karyotype is complete). When you click
to see if you are correct then you should read about how chromosomes are notated. Complete the following
information for each case history:
Case History of Patient A
Name of condition: ___________________
Write a brief description of this condition from the handout sheets. (Include the chromosome of interest, symptoms,
detection, and treatments if there are any).
Case History of Patient B
Name of condition: ___________________
Write a brief description of this condition from the handout sheets. (Include the chromosome of interest, symptoms,
detection, and treatments if there are any).
Case History of Patient C
Name of condition: ___________________
Write a brief description of this condition from the handout sheets. (Include the chromosome of interest, symptoms,
detection, and treatments if there are any). This one may require some internet searching.