n rats, black fur color is dominant to white fur color, and pointy ears are dominant to round ears. You cross a homozygous black, pointy eared rat to a homozygous white, round eared rat. You then Cross one of the F1 offspring to a homozygous white, round eared rat, and obtain the following progeny: 88 black, pointy eared rats; 92 white, round eared rats; 76 black, round eared rats; 81 white, pointy eared rats. Please perform a chi-square test of independence to determine if the genes for fur color and ear shape are linked, or assort independently.
n rats, black fur color is dominant to white fur color, and pointy ears are dominant to round ears. You cross a homozygous black, pointy eared rat to a homozygous white, round eared rat. You then Cross one of the F1 offspring to a homozygous white, round eared rat, and obtain the following progeny: 88 black, pointy eared rats; 92 white, round eared rats; 76 black, round eared rats; 81 white, pointy eared rats.
Please perform a chi-square test of independence to determine if the genes for fur color and ear shape are
linked, or assort independently.
Introduction:
Law of independent assortment is based on dihybrid cross. It states that inheritance of one character is always independent of the inheritance of other characters within the same individual. In other words, if the inheritance of more than one character is studied simultaneously, the factors or genes for each character assort out independently to the other gene or factor.
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