1.) How many pairs of autosomes does this karyotype have? _ 2.) How many pairs of sex chromosomes does this karyotype have? _
3.) What do you notice about the X and Y chromosomes?
4.) What is the sex of this organism? _
5.) If you look closely at the chromosomes in karyotype B versus karyotype A you see a HUGE difference. Can you tell what the difference is? Explain why this phenomenon exists? (Hint: what happens in Prophase I)
6.) Looking at ALL of the pairs do you see any strange circumstances? What is the special circumstance that you find?
7.) What kind of effect do you think this abnormality on chromosome pair #21 will have on the organism? 8.) What will you name this karyotype? _ _ _