Genetics: From Genes to Genomes, 5th edition
5th Edition
ISBN: 9780073525310
Author: Leland H. Hartwell, Michael L. Goldberg, Janice A. Fischer, Leroy Hood, Charles F. Aquadro
Publisher: McGraw-Hill Education
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Chapter 21, Problem 7P
Summary Introduction
To determine:
The factors are influencing heritability values that make it possible for conclusions from two different groups studying the same trait in the same organism to be correct.
Introduction:
Traits of organisms can pass from the parents to their offspring, and this mechanism is known as an inheritance. Gregor Mendel was a monk, and he discovered three laws that describe the inheritance of factors from parents to offsprings.
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Which of the following choices accurately describe what makes one person different from another with regard to traits (such as height) that have a very high heritability?
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Chapter 21 Solutions
Genetics: From Genes to Genomes, 5th edition
Ch. 21 - Choose the best matching phrase in the right...Ch. 21 - Prob. 2PCh. 21 - How can each of the following be used in...Ch. 21 - Which of the following statements would be true of...Ch. 21 - Prob. 5PCh. 21 - Prob. 6PCh. 21 - Prob. 7PCh. 21 - Human geneticists have found the Finnish...Ch. 21 - Prob. 9PCh. 21 - Prob. 10P
Ch. 21 - In a certain plant, leaf size is determined by...Ch. 21 - Compare and contrast the use of SNP genotyping: i...Ch. 21 - Prob. 13PCh. 21 - Prob. 14PCh. 21 - Canavan disease, caused by homozygosity for a...Ch. 21 - Prob. 16PCh. 21 - Prob. 17PCh. 21 - Consider the triangle diagram shown in Fig. 21.15....Ch. 21 - Prob. 19PCh. 21 - Prob. 20PCh. 21 - Suppose a GWAS investigation found a particular LD...Ch. 21 - In domesticated dogs, size has a high...Ch. 21 - Prob. 23P
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- Why are monozygotic twins who are reared apart so useful in the calculation of heritability?arrow_forwardEstimates of narrow-sense heritability are useful for which of the following? O a) Determining the contribution of nonadditive alleles to phenotypic variance. O b) Determining what traits might be easy to selectively breed in a population. O c) Determining an individual organism's risk of inheriting a trait. O d) Determine the contribution of environment to a trait.arrow_forwardYou have just started working in a field research laboratory focused on a species of Redtailed Hawks. They have been trying to understand the heritability of wingspan in this species. They've studied them in 2 different contexts. In the wild, and in an indoor enclosure that is temperature controlled and provides them with a standardized diet, eliminating environmental variance. In the wild, the total variance was determined to be 24 inches. In the enclosure, total variance between subjects was found to be 8 inches. In the enclosure, what is the VEnvironmental VTotal = VGenetic + %3D Environmental H? = VGenetic/ VTotal %3Darrow_forward
- You have just started working in a field research laboratory focused on a species of Redtailed Hawks. They have been trying to understand the heritability of wingspan in this species. They’ve studied them in 2 different contexts. In the wild, and in an indoor enclosure that is temperature controlled and provides them with a standardized diet, eliminating environmental variance. In the wild, the total variance was determined to be 24 inches. In the enclosure, total variance between subjects was found to be 8 inches.In the enclosure, what is the VEnvironmental They ask you to figure out what the VEnvironmental (environmental variance) is for the hawks in the wild. (Hint: First identify Vgenetic in the enclosure. What is the heritability of wingspan in the wild?arrow_forwardWhich of the following best describes the broad-sense heritability of a trait? Variance in the trait that is due to genetic effects (VG) The proportion of phenotype variance that is due to genetic effects (VG/Vp) The proportion of phenotype variance that is due to genetic effects (Vp - VG) The proportion of phenotype variance that is not due to genetic effects (Vp- VE) the degree to which genes influencing a trait are passed from offspring to parents Toarrow_forwardLast summer you were walking in the woods when you stumbled upon a group of four tiny baby squirrels. You noticed that they all had different tail lengths. Curious, you decided to measure the tail lengths of the four squirrels. Their tail lengths were found to be: 30 mm, 38 mm, 32 mm, and 28 mm. The heritability for tails in squirrels is 0.33. (This is a fraction, not percent.) What is the variance due to the difference in environment (VE)? Round to two decimals and do not include units.arrow_forward
- Many researchers have estimated the heritability of human traits by comparing the correlation coefficients of monozygotic and dizygotic twins (see pp. 731–732). One of the assumptions made in using this method is that monozygotic twin pairs experience environments that are no more similar to each other than those experienced by dizygotic twin pairs. How might this assumption be violated? Give some specific examples of how the environments of two monozygotic twins might be more similar than the environments of two dizygotic twins.arrow_forwardSevere forms of COVID-19 appear to be more frequent in individuals carrying specific genetic variants. Such variants are found in at least four different loci in the genome. What do you expect this to mean in terms of heritability of susceptibility to severe COVID-19? Group of answer choices Nothing can be said about heritability Heritability could be 0 or 0.25 Heritability is 1 Heritability is greater than 0 Heritability is 0.25 Heritability is greater than 0.25arrow_forwardThis lab exercise requires that we count certain Mendelian traits among students present in the lab. Your professor will explain each trait being addressed and will then ask students to identify if they are dominant or recessive for that specific trait. The collected traits will then be plugged into the Hardy-Weinberg Equilibrium formula in order to calculate frequency of Homozygous dominant, Heterozygous and Homozygous recessive individuals in the same. p2 + 2pq + q2 = 100 given data: trait: hair swirl 19 individuals total. 10 had the homozygous dominant hair swirl trait: clockwise the nine other were recessive please do a step by step explanation with the calculation using this data, as I am very unfamiliar with what values mean what and the equation itself thank you!arrow_forward
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