Essentials of Genetics (9th Edition) - Standalone book
9th Edition
ISBN: 9780134047799
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Textbook Question
Chapter 21, Problem 9PDQ
What kind of heritability estimates (broad sense or narrow sense) are obtained from human twin studies?
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Students have asked these similar questions
What kind of heritability estimates (broad sense or narrow sense) are obtained from human twin studies?
Why are monozygotic twins who are reared apart so useful in the calculation of heritability? What assumption is being made about their respective environment?
ADHD is a highly heritable trait with published broad sense heritability estimates in the range of 0.6-
0.9. Larsson et al. 2014 (doi: 10.1017/S0033291713002493 ) reported the concordance values
shown in the table below for pairs of monozygotic (MZ) or dizygotic (DZ) twins with data for male
and female pairs shown separately, using data from the Swedish twin register (59,000 twin pairs,
born between 1959 and 2001).
Male MZ twins Male DZ twins Female MZ twins Female DZ twins
56%
16%
37%
13%
Based on the data in this table, does ADHD appear to be more heritable in males or females?
Provide one sentence of rationale to support your answer.
Chapter 21 Solutions
Essentials of Genetics (9th Edition) - Standalone book
Ch. 21 -
CASE STUDY | A genetic flip of the coin
On July...Ch. 21 - CASE STUDY|A genetic flip of the coin On July 11,...Ch. 21 -
CASE STUDY|A genetic flip of the coin
On July...Ch. 21 - HOW DO WE KNOW?
1. In this chapter, we focused on...Ch. 21 - Review the Chapter Concepts list on page 422....Ch. 21 -
3. Define the following: (a) polygenic, (b)...Ch. 21 - A dark-red strain and a white strain of wheat are...Ch. 21 - Height in humans depends on the additive action of...Ch. 21 -
6. An inbred strain of plants has a mean height...Ch. 21 - Prob. 7PDQ
Ch. 21 - In the following table, average differences of...Ch. 21 - What kind of heritability estimates (broad sense...Ch. 21 - List as many human traits as you can that are...Ch. 21 - Corn plants from a test plot are measured, and the...Ch. 21 -
12. The following variances were calculated for...Ch. 21 - The mean and variance of plant height of two...Ch. 21 - A hypothetical study investigated the vitamin A...Ch. 21 - In a herd of dairy cows the narrow-sense...Ch. 21 - In an assessment of learning in Drosophila, flies...Ch. 21 - Suppose you want to develop a population of...Ch. 21 -
18. In a population of tomato plants, mean fruit...Ch. 21 - In a population of 100 inbred, genotypically...Ch. 21 - In a cross between a strain of large guinea pigs...Ch. 21 - While most quantitative traits display continuous...
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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
- What is Narrow-Sense Heritability ?arrow_forwardWhy is the narrow-sense heritability more useful to plant and animal breeders than broad sense heritability?arrow_forwardWhat is the importance of the comparison of traits between adopted and natural children in determining heritability? What assumption about the environment is made in this case?arrow_forward
- What does the likelihood ratio mean?arrow_forwardHow are the standard deviation and variance related to each other? How are they different than just measuring the range? Can plot samples of dandelion cover from two different locations have the same mean but different variance? Explain. Can you answer question 3? Thanks.arrow_forwardIn a study conducted on human height, heritability estimates that were initially done on children with an average age of 5 years old was 74%. Heritability estimates were again performed on the same individuals when they reached adulthood with an average of 40 years old. The result was 30%. Explain the results.arrow_forward
- Understand the meaning of broad-sense heritability?arrow_forwardIf 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 /quiz/attempt.php?attempt=1173673&cmid=3837312&page=4# 3 с $ 4 G Search or type URL % 5 MacBook Pro 6 & 8 9 1arrow_forwardThe graphs below show antibiotic production from the same population of bacteria, grown in two different environments-high glucose and low glucose. Number of organisms HIGH GLUCOSE LOW GLUCOSE Amount of antibiotic produced If you calculate the heritability of antibiotic production for this population of bacteria when grown in low glucose compared to when it is grown in high glucose, the estimated heritability value Incorrect will be smaller in the low glucose than in the high glucose. will not be possible to estimate because you don't know the genotypic variation. will be larger in the low glucose than in the high glucose. will be the same in both environments. X Xarrow_forward
- In the following table, average differences of height, weight,and fingerprint ridge count between monozygotic twins (rearedtogether and apart), dizygotic twins, and nontwin siblings arecompared: Based on the data in this table, which of these quantitative traitshas the highest heritability values?arrow_forwardGiven the below information, what is the narrow-sense heritability for this trait? 0.22 VD 0.75 VE 0.86 VGE 0.61 0.23 total 2.67arrow_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_forward
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