In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk-shaped fruit (D) is dominant over sphere-shaped fruit (d). If a squash plant true-breeding for white, but heterozygous for disk-shape fruit is crossed with a plant which is a dominant carrier for white, but homozygous sphere-shaped fruit. Following Mendel’s laws of heredity, what could be the phenotypic and genotypic proportion of the WwDD in the the first filial generation?   a. wDD (heterozygous white with homozygous disk-shaped fruit) is 1% b. WwDD (heterozygous white with homozygous disk-shaped fruit) is 0 % c. WwDD (homozyzygous white with homozygous disk-shaped fruit) is 6.5% d. WwDD (heterozygous white with homozygous disk-shaped fruit) is 12.5 %

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 summer squash, white fruit color (W) is dominant over yellow fruit color (w) and disk-shaped fruit (D) is dominant over sphere-shaped fruit (d). If a squash plant true-breeding for white, but heterozygous for disk-shape fruit is crossed with a plant which is a dominant carrier for white, but homozygous sphere-shaped fruit. Following Mendel’s laws of heredity, what could be the phenotypic and genotypic proportion of the WwDD in the the first filial generation?

 

a. wDD (heterozygous white with homozygous disk-shaped fruit) is 1%

b. WwDD (heterozygous white with homozygous disk-shaped fruit) is 0 %

c. WwDD (homozyzygous white with homozygous disk-shaped fruit) is 6.5%

d. WwDD (heterozygous white with homozygous disk-shaped fruit) is 12.5 %

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