What are the possible phenotypic (P) and genotypic (G) ratios if you cross two parents who are carriers of dominant traits following Mendelian laws of heredity? P: 2:1; G: 3:1 P: 1:2:1; G: 1:3 P: 3:1; G: 1:2:1 P: 3:1; G: 2:1:1

What are the possible phenotypic (P) and genotypic (G) ratios if you cross two parents who are carriers of dominant traits following Mendelian laws of heredity? P: 2:1; G: 3:1 P: 1:2:1; G: 1:3 P: 3:1; G: 1:2:1 P: 3:1; G: 2:1:1

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Description: What are the possible phenotypic (P) and genotypic (G) ratios if you cross two parents who are carriers of dominant traits following Mendelian laws of heredity? P: 2:1; G: 3:1 P: 1:2:1; G: 1:3P: 3:1; G: 1:2:1P: 3:1; G: 2:1:1

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter5: The Inheritance Of Complex Traits

Section: Chapter Questions

Problem 16QP: Why are monozygotic twins who are reared apart so useful in the calculation of heritability?

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In humans the absence of a cleft chin is dominant to the presence of a cleft chin. Two individuals, both of whom are heterozygous for a recessive allele that causes the cleft chin phenotype have 5 children, what is the probability that 3 of their children would not have a cleft chin and 2 would have a cleft chin? 0.0037 0.026 0.237 0.264
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Why are monozygotic twins who are reared apart so useful in the calculation of heritability?
Using the HardyWeinberg Law in Human Genetics Suppose you are monitoring the allelic and genotypic frequencies of the MN blood group locus (see Question 2 for a description of the MN blood group) in a small human population. You find that for 1-year-old children, the genotypic frequencies are MM = 0.25, MN = 0.5, and NN = 0.25, whereas the genotypic frequencies for adults are MM = 0.3, MN = 0.4, and NN = 0.3. a. Compute the M and N allele frequencies for 1-year-olds and adults. b. Are the allele frequencies in equilibrium in this population? c. Are the genotypic frequencies in equilibrium?
Using the concepts of non-mendelian genetics, what is the phenotypic ratio of the offspring if two heterozygous pea plants with purple flowers are crossed together? O 3 pea plants with light purple flowers: 1 pea plant with a single mixed color for white and purple color. O 3 pea plants with purple flowers: 1 pea plant with light violet flowers. O 1 pea plant with purple flowers: 2 pea plants with white flowers: 1 pea plant with mixed color for white and purple color. O 1 pea plant with purple flowers: 2 pea plants with light purple flowers: 1: pea plant with white flowers.
Why are monozygotic twins who are reared apart so useful in the calculation of heritability? What assumption is being made about their respective environment?
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In rabbits, an allelic series helps to determine coat color: C (full color), cch (chinchilla, gray color), ch (Himalayan, white with black extremities), and c (albino, all-white). The C allele is dominant over all others, cch is dominant over ch and c, ch is dominant over c, and c is recessive to all the other alleles. This dominance hierarchy can be summarized as C > cch > ch > c. The rabbits in the following list are crossed and produce the progeny shown. Give the genotypes of the parents for following cross: Phenotypes of parents Phenotypes of offspring Q. full color × full color 34 full color, 14 albino
In rabbits, an allelic series helps to determine coat color: C (full color), cch (chinchilla, gray color), ch (Himalayan, white with black extremities), and c (albino, all-white). The C allele is dominant over all others, cch is dominant over ch and c, ch is dominant over c, and c is recessive to all the other alleles. This dominance hierarchy can be summarized as C > cch > ch > c. The rabbits in the following list are crossed and produce the progeny shown. Give the genotypes of the parents for each cross: Phenotypes of parents Phenotypes of offspring a. full color × albino 12 full color, 12 albino b. Himalayan × albino 12 Himalayan, 12 albino c. full color × albino 12 full color, 12 chinchilla d. full color × Himalayan 12 full color, 14 Himalayan, 14 albino e. full color × full color 34 full color, 14 albino
In rabbits, an allelic series helps to determine coat color: C (full color), cch (chinchilla, gray color), ch (Himalayan, white with black extremities), and c (albino, all-white). The C allele is dominant over all others, cch is dominant over ch and c, ch is dominant over c, and c is recessive to all the other alleles. This dominance hierarchy can be summarized as C > cch > ch > c. The rabbits in the following list are crossed and produce the progeny shown. Give the genotypes of the parents for following cross: Phenotypes of parents Phenotypes of offspring Q. full color × Himalayan 12 full color, 14 Himalayan, 14 albino