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 Num purple, starchy 15 purple, sugary 14 yellow, starchy 16 yellow, sugary 11 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: Phenotype Num purple, starchy 15 purple, sugary 14 yellow, starchy 16 yellow, sugary 11 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?

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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The genes responsible for albinism (A or a) and pink eyes (P or p) in mice are linked and wild-type pigmentation is dominant in both traits. A homozygous wild-type mouse is mated with an albino, pink-eyed mouse. The resulting F1 mice are crossed with albino, pink-eyed mice. The F2 progeny of this testcross are: 22 7 wild-type body color, wild-type eyes albino body color, wild-type eyes wild-type body color, pink eyes albino body color, pink eyes 10.000 3 18 How many cM apart are the albinism and pink-eye genes? O 50 O 40 O 30 O 20 O 10
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In the tomato plant, red fruit (R) is dominant over green (r). Smooth fruit skin (S) is dominant over peachy skin (s). The genes for fruit colour and fruit texture are linked on the same chromosome. A heterozygous red, heterozygous smooth plant was crossed with a green, peachy plant. The results are given:Smooth-red = 28Smooth-green 567Peachy-red = 534Peachy-green = 34i. Calculate the map distance between the genes.ii. The map distance calculated in (i) is not representing the true distance between the genes? Provide your argument.
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In a parental cross of a autosomal dominant homozygous lethal disease trait, where the father is affected and mother unaffected, 50% of offspring will have disease phenotype and 50% will have the wild type phenotype. In f1 cross between affected male and unaffected female, the expected proportions of the disease phenotype and the wild type phenotype in the f2 generation are: