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Problem: My cat without a tail has kittens with 3 of them having a short stubby tail and 1 not having a tail. In my hood there is manx cat (no tail), tabby (long tail), and a fluffy white (short stubby tail. Who fathered the kittens? Explain.

2007-01-05 12:51:42 · 2 answers · asked by CyberKnight 2 in Science & Mathematics Biology

2 answers

The no tail because the no tail is regressive and has a 1/4th chance of coming out in the kittens.
father cat = Fs
mother cat = Ms
--- F------ s
M _ _------_ _

s __ ------_ _

fill in the blanks on the chart I made

2007-01-05 13:08:18 · answer #1 · answered by Anonymous · 0 0

most likely the fluffy white. the kittens have 3 out of 4 with the stubby tail, which means that the short stubby tail is probably a dominant genetic trait. lets assume that since your cat has no tail, and only one of the kittens has no tail, that no-tail is a recessive trait. Dominant traits override recessive traits.

We'll assume then that your cats traits then are (recessive:recessive) and the fathers is (dominant:recessive)Each parent passes only one trait to the offspring, so if you map it out it looks like:

___ r____r
D__Dr___Dr
r___rr___rr

where the rr on top is your cat(r=recessive D=Dominant), the father is the Dr on the left, and the possible offspring line up in columsn and rows(giving you a possibility of 2 Dr's and 2 rr's--about 50% each way. The father could also have both traits dominant, in which case it would be:

___r____r
D__Dr__Dr
D__Dr__rr

which would make 3 of the four possibilities dominant, and only 1 recessive. This doesnt totally put the other cats off the hook, because a long tail could be dominant over a short tail, but my money's on the white fluffy.Hope this wasnt too confusing.

2007-01-05 21:21:01 · answer #2 · answered by xooxcable 5 · 0 0

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