In corn, purple kernels (P) are dominant over yellow kernels (p) and starchy kernels (Su) are dominant over sugary kernels (su). A corn plant grown from a purple and starchy kernel is crossed with a plant grown from a yellow and sugary kernel, and the following progeny (kernels) are produced: Phenotype Number purple, starchy 150 purple, sugary 142 yellow, starchy 161 yellow, sugary 115 Formulate a hypothesis about the genotypes of the parents and offspring in this cross. Perform a chi-square goodness-of-fit test comparing the observed progeny with the numbers expected based on your genetic hypothesis. What conclusion can you draw based on the results of your chi-square test? Can you suggest an explanation for the observed results?
In corn, purple kernels (P) are dominant over yellow kernels (p) and
starchy kernels (Su) are dominant over sugary kernels (su). A corn
plant grown from a purple and starchy kernel is crossed with a plant
grown from a yellow and sugary kernel, and the following progeny
(kernels) are produced:
purple, starchy 150
purple, sugary 142
yellow, starchy 161
yellow, sugary 115
Formulate a hypothesis about the genotypes of the parents and
offspring in this cross. Perform a chi-square goodness-of-fit test
comparing the observed progeny with the numbers expected based on
your genetic hypothesis. What conclusion can you draw based on the
results of your chi-square test? Can you suggest an explanation for the
observed results?
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