Genetic Analysis: An Integrated Approach (2nd Edition)
2nd Edition
ISBN: 9780321948908
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter 21, Problem 3P
Compare and contrast broad sense heritability and narrow sense heritability, giving an example of each measurement and identifying how the measurement is used.
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Students have asked these similar questions
If the environmental variance increase and the genetic variance components remain the same what will the effect be on heritability?
Select one:
O a. Broad-sense heritability will increase
O b. There will be no change.
O c. Broad-sense heritability will increase, but narrow sense heritability will decrease.
O d. Narrow-sense heritability will increase
O e. Broad-sense heritability will decrease
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What does a heritability rating of 35% for perceived stress mean?
Chapter 21 Solutions
Genetic Analysis: An Integrated Approach (2nd Edition)
Ch. 21 - Which of the following traits would you expect to...Ch. 21 - 19.2 For the traits listed in the previous...Ch. 21 - Compare and contrast broad sense heritability and...Ch. 21 - 19.4 In a cross of two pure-breeding lines of...Ch. 21 - 19.5 Describe the difference between continuous...Ch. 21 - Prob. 6PCh. 21 - 19.7 Provide a definition and an example for each...Ch. 21 - 19.10 Three pairs of genes with two alleles each (...Ch. 21 - Prob. 9PCh. 21 - 19.12 Two inbred lines of sunflowers produce...
Ch. 21 - Prob. 11PCh. 21 - 19.14 In Nicotiana, two inbred strains produce...Ch. 21 - 19.15 Suppose the length of maize ears has narrow...Ch. 21 - In a line of cherry tomatoes, the average fruit...Ch. 21 - 19.17 Two purebreeding wheat strains, one...Ch. 21 - Prob. 16PCh. 21 - During a visit with your grandparents, they...Ch. 21 - 19.20 An association of racehorse owners is...Ch. 21 - Prob. 19PCh. 21 - Suppose a polygenic system for producing color in...Ch. 21 - New Zealand lamb breeders measure the following...Ch. 21 - Cattle breeders would like to improve the protein...Ch. 21 - In human gestational development, abnormalities of...Ch. 21 - The children of couples in which one partner has...Ch. 21 - Answer the following in regard to multifactorial...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A trait has a heritability of 0.15. This suggests: Question 5 options: The phenotypic variance is due entirely to genetic variation. The phenotypic variance is due entirely to environmental factors. The environment plays a much larger role in the phenotypic variance relative to genetics. Both genetic and environmental factors play similar roles in the phenotypic variation. Genetics plays a much larger role in the phenotypic variance relative to the environment.arrow_forwardThe broad-sense heritability of a trait is estimated at 0.6. If the total phenotypic variance is estimated at 30.0, what is the genetic variance? 12 18 36 5 9arrow_forwardDescribe how genetic influences of quantitative traits can be studied in humans. Describe some of the types of studies and why they are helpful. Answer in at least 4 full sentences.arrow_forward
- Monozygotic twin studies have allowed the correlation coefficient to be derived for a number of medical conditions. One example is blood pressure, where the coefficient is 0.6. Calculate the maximum value for the narrow sense heritability for blood pressure. B. 0.30 С. 0.50 D. 0.60 Е. 1.00arrow_forwardSummarize the meaning of phenotypic variancearrow_forwardPlease explain how the more genes that contribute to a particular trait, the less discrete the categories become, and the more continuous it is, the distribution appears in a quantitative trait. Be sure that you include the following topics in your description: phenotypic categories, genotype, dominant and recessive, segregations of alleles, additive alleles.arrow_forward
- The length of the middle joint of the right index finger was measured in 10 sets of parents and their adult offspring. The mean parental lengths and the mean offspring lengths for each family are listed in the accompanying table. Calculate the regression coefficient for regression of mean offspring length against mean parental length and estimate the narrow-sense heritability for this characteristic. Mean parental length (mm) Mean offspring length (mm) 30 31 35 36 28 31 33 35 26 27 32 30 31 34 29 28 40 38 33 34arrow_forwardC. In a horse population, three different traits showing continuous distribution were measured, and their variances are shown in the table below: Traits Cutting Racing Speed Jumping Variance Ability Ability Phenotypic 96 39.2 39 Environmental 42 27.8 16.8 Additive 39 12.4 12 Dominance 10 3.1 9. 1. Calculate the broad sense and narrow sense heritabilities for each trait.arrow_forwardBriefly describe common misunderstandings or misapplications of the concept of heritabilityarrow_forward
- What does a high LOD score mean?arrow_forwardIn a population of geese, the narrow-sense heritability for wing span is shown to be 0.5. If the phenotypic variance is 0.8, the gene-environment interaction variance is 1.2, and the environmental variance is 0.2, what is the additive genetic variance?arrow_forwardThe following table gives the percentage of twin pairs studied in which both twins expressed the same phenotype for a trait (concordance). Percentages listed are for concordance for each trait in monozygotic (MZ) and dizygotic (DZ) twins. Assuming that both twins in each pair were raised together in the same environment, what do you conclude about the relative importance of genetic versus environmental factors for each trait? Trait MZ % DZ % Blood types 100 66 Eye color 99 28 Mental retardation 97 37 Measles 95 87 Hair color 89 22 Handedness 79 77 Idiopathic epilepsy 72 15 Schizophrenia 69 10 Diabetes 65 18 Identical allergy 59 5 Cleft lip 42 5 Club foot 32 3 Mammary cancer 6 3arrow_forward
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