Part B Maize Genetics Aleurone Color and Endosperm Characteristics In the corn grain, the aleurone layer is a single layer of cells between the pericarp and the endosperm. The color of the aleurone layer is determined by several interacting genes, one of dominant which, R, is responsible for anthocyanin production in the aleurone layer. Homozygous (RR) and heterozygous (Rr) genotypes result in a purple aleurone layer and the homozygous recessive (rr) genotype results in a colorless one. The grains will appear either purple or yellow rather than purple or colorless as you might expect. The yellow is due to the presence of yellow endosperm below the colorless, transparent aleurone layer. The allele Su produces starchy endosperm and the allele su produces sweet endosperm. Su is completely dominant over su. When the kernels dry, SuSu and Susu grains are smooth, while susu grains are wrinkled. Predict what phenotypic ratio of purple-smooth; purple-wrinkled; yellow-smooth; yellow-wrinkled kernels you expect to observe. 37. What is your expected dihybrid F2 phenotypic ratio 38. What is your null hypothesis? 39. What is your alternative hypothesis?
Part B Maize Genetics Aleurone Color and Endosperm Characteristics In the corn grain, the aleurone layer is a single layer of cells between the pericarp and the endosperm. The color of the aleurone layer is determined by several interacting genes, one of dominant which, R, is responsible for anthocyanin production in the aleurone layer. Homozygous (RR) and heterozygous (Rr) genotypes result in a purple aleurone layer and the homozygous recessive (rr) genotype results in a colorless one. The grains will appear either purple or yellow rather than purple or colorless as you might expect. The yellow is due to the presence of yellow endosperm below the colorless, transparent aleurone layer. The allele Su produces starchy endosperm and the allele su produces sweet endosperm. Su is completely dominant over su. When the kernels dry, SuSu and Susu grains are smooth, while susu grains are wrinkled. Predict what phenotypic ratio of purple-smooth; purple-wrinkled; yellow-smooth; yellow-wrinkled kernels you expect to observe. 37. What is your expected dihybrid F2 phenotypic ratio 38. What is your null hypothesis? 39. What is your alternative hypothesis?
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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