In mice, the allele for colored fur (C) is dominant to the allele for albinism (c). The allele (W) for

normal behavior is dominant to that for waltzing movement (w). Give the probable genotypes of the
parents if they produced the offspring listed after the following crosses:
(a) Colored normal ? white waltzer produced 10 colored normal, 8 colored waltzers, 2 white
waltzers, and 11 white normal.
(b) Colored normal ? white normal produced 35 colored normal and 13 colored waltzers.
(c) Colored normal ? colored normal produced 37 colored normal, 14 colored waltzers, 9
white normal, and 5 white waltzers. What will be an ideal response?


(a) Cc Ww ? cc ww
(b) CC Ww ? cc Ww
(c) Cc Ww ? Cc Ww

Biology & Microbiology

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