In the Frozen Kingdom, Kristoff and Anna successfully raised a large family, which grew to a total of 50 people. Among the 50 people, 36 have brown eyes and 14 have blue eyes. A dominant allele R confers brown eye colour and a recessive allele r confers blue eye color. Assuming Hardy-Weinberg equilibrium is operating, answer the following questions. a. What is the frequency of the brown allele R? b. What is the frequency of the blue allele r? c. How many children are heterozygotes (Rr)?

In the Frozen Kingdom, Kristoff and Anna successfully raised a large family, which grew to a total of 50 people. Among the 50 people, 36 have brown eyes and 14 have blue eyes. A dominant allele R confers brown eye colour and a recessive allele r confers blue eye color. Assuming Hardy-Weinberg equilibrium is operating, answer the following questions. a. What is the frequency of the brown allele R? b. What is the frequency of the blue allele r? c. How many children are heterozygotes (Rr)?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter18: Genetics Of Behavior

Section: Chapter Questions

Problem 14QP: A pedigree analysis was performed on the family of a man with schizophrenia. Based on the known...

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n a container/tub, place 50 pieces ofred paper, 50 pieces of pink paper, and50 pieces of white paper. Let usassume that each color is thephenotypic expression of thegenotypes homozygous dominant AA(red), heterozygous Aa (pink), andhomozygous recessive aa (white).Without looking, randomly pick 20 pieces of paper from your container/tub and assumethat those individuals died upon picking, thus will be removed from your population. a. If you are a picky eater and prefer the white only, what do you think will happen in the genotypic frequency and allelic frequencies of the red, pink and white pieces of papers?
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. In 1919, Calvin Bridges began studying an X-linkedrecessive mutation causing eosin-colored eyes inDrosophila. Within an otherwise true-breedingculture of eosin-eyed flies, he noticed rare variantsthat had much lighter cream-colored eyes. By intercrossing these variants, he was able to make a truebreeding cream-eyed stock. Bridges now crossedmales from this cream-eyed stock with true-breedingwild-type females. All the F1 progeny had red (wildtype) eyes. When F1 flies were intercrossed, the F2progeny were 104 females with red eyes, 52 maleswith red eyes, 44 males with eosin eyes, and14 males with cream eyes. Assume that thesenumbers represent an 8:4:3:1 ratio.a. Formulate a hypothesis to explain the F1 and F2results, assigning phenotypes to all possiblegenotypes.b. What do you predict in the F1 and F2 generations if the parental cross is between truebreeding eosin-eyed males and true-breedingcream-eyed females?c. What do you predict in the F1 and F2 generationsif the parental cross is…
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