In corn, pigmented aleurone (R) is dominant to colorless aleurone (r), and green plant color (G) is dominant to yellow (g). A plant that is heterozygous for both characters is testcrossed to a homozygous recessive for both genes (rrgg). The following progeny are produced: Group Group 1 Group 2 Group 3 Group 4 Phenotype pigmented aleurone; green plant pigmented aleurone; yellow plant colorless aleurone; green plant colorless aleurone; yellow plant heterozygous plant was Number [Select] 85 9 8 Based on the results of this cross, the parental classes of offspring are groups [Select] and the genotype of the 95

In corn, pigmented aleurone (R) is dominant to colorless aleurone (r), and green plant color (G) is dominant to yellow (g). A plant that is heterozygous for both characters is testcrossed to a homozygous recessive for both genes (rrgg). The following progeny are produced: Group Group 1 Group 2 Group 3 Group 4 Phenotype pigmented aleurone; green plant pigmented aleurone; yellow plant colorless aleurone; green plant colorless aleurone; yellow plant heterozygous plant was Number [Select] 85 9 8 Based on the results of this cross, the parental classes of offspring are groups [Select] and the genotype of the 95

Name: In corn, pigmented aleurone (R) is dominant to colorless aleurone (r)
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Description: In corn, pigmented aleurone (R) is dominant to colorless aleurone (r), andgreen plant color (G) is dominant to yellow (g). A plant that isheterozygous for both characters is testcrossed to a homozygousrecessive for both genes (rrgg). The following p

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 5RQ: Imagine that you are performing a cross involving seed texture in garden pea plants. You cross...

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Hemophilia and color blindness are both recessive conditions caused by genes on the X chromosome. To calculate the recombination frequency between the two genes, you draw a large number of pedigrees that include grandfathers with both hemophilia and color blindness, their daughters (who presumably have one chromosome with two normal alleles and one chromosome with two mutant alleles), and the daughters sons. Analyzing all the pedigrees together shows that 25 grandsons have both color blindness and hemophilia, 24 have neither of the traits, 1 has color blindness only, and 1 has hemophilia only. How many centimorgans (map units) separate the hemophilia locus from the locus for color blindness?
The following pedigree shows the pattern of inheritance of red-green color blindness in a family. Females are shown as circles and males as squares; the squares or circles of individuals affected by the trait are filled in black. What is the chance that a son of the third-generation female indicated by the arrow will be color blind if the father is not color blind? If he is color blind?
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Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were counted, with the following results: 474 Aabb, 480 aaBb, 20 AaBb, and 26 aabb. What type of cross is it? Are these loci linked? What are the two parental classes and the two recombinant classes of offspring? What is the percentage of recombination between these two loci? How many map units apart are they?
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