A) In Drosophila (fruit flies) ebony body color and being eyeless are both autosomal recessive traits. An ebony fly is mated with an eyeless fly and the F1 are all wild type.
The F2 are:
590 wild type
185 eyeless
200 ebony
72 eyeless and ebony
Test the hypothesis that this was a dihybrid cross (ratios) using the Chi Square test.
B) A corn plant with purple, full kernels is crossed with a plant having purple, full kernels. The following progeny are obtained:
Purple, full 100
Purple, shrunken 36
Yellow, full 30
Yellow, shrunken 8
Determine the genotypes of the parents and progeny.
Test your hypothesis with a Chi square test until it is accepted.
NEED
- -Chi square,
- -degrees of freedom
- -probability
- -accept/reject
