Sex Linkage

  1. Drag genes from the left side of the table into the top right box to create the genetic cross. Place the genes on both sides of the "x" symbol. Check your work.

  2. From the remaining genes, drag genes into the middle box to make the Punnett square. There should be no genes left over. Check your work.

  3. Solve the questions in the bottom box. For percent answers, include the percent sign with no space after the numbers (ie.75%). For word answers, use all small letters (ie. yes).

Cross a hemophiliac man with a carrier female.
( H = normal blood, h = hemophilia )



Punnett Square:

Of all offspring, what percent will be males with hemophilia?
(ie. 25%)

Of all offspring, what percent will be females NOT suffering from hemophilia?

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© Copyright 2005, E. Kimmel, all rights reserved