In cultivated flowers called “stocks,” the recessive genotype of one locus (aa) prevents the development of pigment in the flower thus producing a white color. In the presence of the dominant allele A, alleles at another locus may be expressed as follows: B_ = red. bb = cream.a) When cream stocks of the genotype Aabb are crossed to red stocks of the genotype AaBb, what genotypic and phenotypic proportions are expected in the progeny? b) When dihybrid red stocks are crossed together, what phenotypic ratio is expected among the progeny? c) If red stocks crossed to white stocks produced progeny with red, cream and white flowers, what are the genotypes of the parents? Show the results of the cross based on your answer.

Name: In cultivated flowers called “stocks,” the recessive genotype of one l
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Description: In cultivated flowers called “stocks,” the recessive genotype of one locus (aa) prevents the development of pigment in the flower thus producing a white color. In the presence of the dominant allele A, alleles at another locus may be expressed as fol

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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

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In cultivated flowers called “stocks,” the recessive genotype of one locus (aa) prevents the development of pigment in the flower thus producing a white color. In the presence of the dominant allele A, alleles at another locus may be expressed as follows: B_ = red. bb = cream.

a) When cream stocks of the genotype Aabb are crossed to red stocks of the genotype AaBb, what genotypic and phenotypic proportions are expected in the progeny?

b) When dihybrid red stocks are crossed together, what phenotypic ratio is expected among the progeny?

c) If red stocks crossed to white stocks produced progeny with red, cream and white flowers, what are the genotypes of the parents? Show the results of the cross based on your answer.

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