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Posted by KK on January 27, 2002 at 12:37:09:
In Reply to: albinism posted by snake ventura on November 11, 2001 at 23:55:19:
In any particular litter, the percentages may not follow the mendelian prediction, because the mendelian ratio is a ratio of CHANCE.
However, if one were to repeatedly breed the same two animals, and keep track, one will find that the bias against the mendelian prediction in a particular litter, will be corrected in another litter.
Thus, in breeding albino mice (have alot of experience there) to heterozygous mice, one litter may have a larger number of albino offspring than predicted... but in TEN litters (the average reproductive life of a mouse) from the same parents, the ratio will be close to 50%.