Chapter 14 Abnormal Meiosis
Web Assignment
Name__________
Hour_____
Part I
Go to the Web Address:
http://www.massasoitbio.net/courses/136/136_courseassets/cummings_animations/karyotype.html
View the animation to learn how a karyotype can be prepared.
Part II
A karyotype is an organized profile of a person's chromosomes. In a karyotype, chromosomes are
arranged and numbered by size, from largest to smallest. This arrangement helps scientists
quickly identify chromosomal alterations that may result in a genetic disorder. To make a
karyotype, scientists take a picture of someone's chromosomes, cut them out and match them up
using size, banding pattern and centromere position as guides.
Go to the Web Address:
http://learn.genetics.utah.edu/content/begin/traits/karyotype/ Make the karyotype and
turn it in to Mrs. Wald.
If the above link does not work, try this one:
http://learn.genetics.utah.edu/content/chromosomes/karyoty
pe/
Part III
Go to the Web Address :
http://www.biology.arizona.edu/human_bio/activities/karyotyping/karyotyping.html
Read the “Introduction” and continue on to “Patient Histories” . Complete each of
the patients karyotypes by examining the single chromosome on the left side of the
instructions and then clicking on the chromosome number where its homologous partner
is located.Once you have paired up all of the homologous pairs correctly, a note of
congratulations appears and you are asked to characterize the patients karyotype and then
asked to give the patient a diagnosis based upon their karyotype.
Patient A’s Karyotype Questions
1. (A 1.) What notation would you use to characterize Patient A's
karyotype? ________
2. (A 2.) What diagnosis would you give patient A?______________
Patient B’s Karyotype Questions
3. (B 1.) What notation would you use to characterize Patient B's
karyotype? (See Pg 271 Text) _________
4. (B 2. ) What diagnosis would you give patient B? _____________
Patient C’s Karyotype Questions
5.
(C1) What notation would you use to characterize Patient C's
karyotype? (See Pg 271 Text) _________
6. (C2) ) What diagnosis would you give patient C?______________
Part IV
Go to the Web Address :
http://bluehawk.monmouth.edu/~bio/karyotypes.htm
1. Click on Picture of Finished Karyotype – Notice how a completed
karyotype is supposed to look.
2. Click on Graphic of Finished Karyotype – These chromosome
graphics are supposed to help you identify the different types of
chromosomes
3. Complete the Normal Male and Normal Female Karyotypes
Complete each of them and print out each karyotype when you are
finished. Make sure the diagnosis and sex of the individual are filled in
before you print them out.
4. See if you can determine which of the unknowns E through X are
one of the following Down Syndrome, Klinefelter Syndrome or
Turner Syndrome.
Find, complete and print out each of the above correct karyotypes.
Make sure the diagnosis and sex of the individual are filled in before
you print them out. Also include the Unknown letter. Good Luck!