You discover a new species of butterfly with wing colors ranging from red to blue and everything in between. You want to understand the factors that determine wing coloration. You rear butterflies on two different diets and create the plot below. Which of the following can you likely conclude from this data (check all that apply): Diet 1 Diet 2 blue red Color O Color in this species is a polygenic trait O Color in this species is a result of epistasis O Color in this species is pleiotropic O Color in this species is not heritable O Color in this species is affected by the environment Frequency 10 20 30 40 50

You discover a new species of butterfly with wing colors ranging from red to blue and everything in between. You want to understand the factors that determine wing coloration. You rear butterflies on two different diets and create the plot below. Which of the following can you likely conclude from this data (check all that apply): Diet 1 Diet 2 blue red Color O Color in this species is a polygenic trait O Color in this species is a result of epistasis O Color in this species is pleiotropic O Color in this species is not heritable O Color in this species is affected by the environment Frequency 10 20 30 40 50

Name: You discover a new species of butterfly with wing colors ranging from
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Description: You discover a new species of butterfly with wing colors ranging from red to blue and everything inbetween. You want to understand the factors that determine wing coloration. You rear butterflies ontwo different diets and create the plot below. Whic

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 22QP: Height in humans is controlled by the additive action of genes and the action of environmental...

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A genetics researcher determines that the broad-sense heritability of height among Southwestern University undergraduate students is 0.90. Which of the following conclusions would be reasonable? Explain your answer. a. Sally is a Southwestern University undergraduate student, so 10% of her height is determined by nongenetic factors. b. Ninety percent of variation in height among all undergraduate students in the United States is due to genetic differences. c. Ninety percent of the height of Southwestern University undergraduate students is determined by genes. d. Ten percent of the variation in height among Southwestern University undergraduate students is determined by variation in nongenetic factors. e. Because the heritability of height among Southwestern University students is so high, any change in the students’ environment will have minimal effect on their height.
The following table gives the percentage of twinpairs studied in which both twins expressed the same phenotypefor a trait (concordance). Percentages listed arefor concordance for each trait in monozygotic (MZ) anddizygotic (DZ) twins. Assuming that both twins in eachpair were raised together in the same environment, whatdo you conclude about the relative importance of geneticversus environmental factors for each trait?
Choose ONE trait observed in class and explain why one form of the trait is more frequent than the other form of the trait (i.e. why the dominant form is more frequent than the recessive form or vis-à-vis).
In Ayrshire cattle, the spotting of the coat can be either red andwhite or mahogany and white. The mahogany-and-white phenotypeis caused by the allele SM (where the letter S indicates spotting, andthe superscript M stands for mahogany). The red-and-white phenotypeis controlled by the allele SR (where the superscript R standsfor red). The table below shows the relationships between genotypeand phenotype for males and females: Explain the pattern of inheritance.
John, noted acarologist (he studies mites) and fancy humming bird breeder hobbyist, is attempting to breed giant puffing humming bird that he can present at the fancy balls given in his glittering social circle. After years of experimenting with humming bird, John has found that the slope of the least squares regression of Midoffspring on Midparent values is 0.75. All the humming birds were allowed to breed, and a first batch of offspring was produced. The table below presents data on the puffing ability (in cm3) of 10 breeding families of humming bird in his dovecote: Family midparent mid offspring (first batch) 1 55 56 2 68 72 3 77 81 4 37 40 5 25 30 6 34 32 7 44 44 8 23 49 9 60 39 10 67 68 All the humming birds were allowed to breed, and a first batch of offspring was produced. These offspring were used to calculate the midoffspring values above, and when John calculated the slope of the least squares regression of Midoffspring on Midparent values, he…
John, noted acarologist (he studies mites) and fancy humming bird breeder hobbyist, is attempting to breed giant puffing humming bird that he can present at the fancy balls given in his glittering social circle. After years of experimenting with humming bird, John has found that the slope of the least squares regression of Midoffspring on Midparent values is 0.75. All the humming birds were allowed to breed, and a first batch of offspring was produced. The table below presents data on the puffing ability (in cm3) of 10 breeding families of humming bird in his dovecote: Family midparent mid offspring (first batch) 1 55 56 2 68 72 3 77 81 4 37 40 5 25 30 6 34 32 7 44 44 8 23 49 9 60 39 10 67 68 John was disappointed in the puffiness of the first batch of offspring, so he shipped all these offspring to market. John desperately wanted to breed an even bigger, puffier humming bird, so for a second batch of offspring, he let only certain humming bird breed.…
. A chicken breeder is working with a population in whichthe mean number of eggs laid per hen in one month is 28and the variance is 5 eggs2. The narrow-sense heritabilityis known to be 0.8. Given this information, can the breeder expect that the population will respond to selectionfor an increase in the number of eggs per hen in the nextgeneration?a. No, applying selection is always risky and a breedernever knows what to expect.b. No, a breeder needs to know the broad-senseheritability to know what to expect.c. Yes, since the narrow-sense heritability is close to1 (0.8), then we would expect selective breeding couldlead to increased egg production in the next generation.d. Yes, since the variance is greater than 0.e. Both c and d are correct.
Describe and sketch each of the traits from the list, listing genotypes and phenotypes for each. Note: You can do a lot better than the example shown above.
Alkaptonuria is a recessive autosomal genetic disorder associated with darkening of the urine. In the United States, approximately 1 out of every 250,000people has alkaptonuria.a. Assuming Hardy-Weinberg equilibrium, estimatethe frequency of the allele responsible for this trait.b. What proportion of people in the U.S. populationare carriers for this trait? In this population, whatis the ratio of carriers to individuals affected byalkaptonuria?c. If a woman without alkaptonuria had a child withthis trait with one husband then remarried, what isthe chance that a child produced by her secondmarriage would have alkaptonuria?d. Alkaptonuria is a relatively benign condition, sothere is little selective advantage to individualswith any genotype; as a result, your assumptionof Hardy-Weinberg equilibrium in part (a) is reasonable. Could you also use the assumption ofHardy-Weinberg equilibrium to estimate the allelefrequencies and carrier frequencies of more severerecessive autosomal conditions…
Please read the scenario below and answer the question (in bold) that follows: In humans, the ability to roll one's tongue is a dominant trait (T). A woman who can roll her tongue is married to a man who cannot roll his tongue. The couple's daughter, Nia, can roll her tongue though their son, Michael, cannot. If Nia were to (one day) marry a man who was heterozygous for the tongue-rolling trait, what percentage of their children would be able to roll their tongues? a. 0% b. 25% c. 50% d. 75% e. 100% M
If you cross a fruit fly with the genotype Gg, Hh, II, Jj to another fruit fly with genotype Gg, Hh, Ii, jjwhat fraction of their offspring do you expect to have genotype Gg, HH, II, jj? Show your work using individual punnett square for each trait then multiplying the fractions found through the punnett squares
Imagine that you are a doctor in a maternity ward. During your last shift, 20 babies were born. 10 had blue eyes, and 10 had brown eyes. Remember genotypes are the two alleles given for each trait, written with a letter. For this activity B =brown eyes b= blue eyes. Phenotypes are the physical appearance of the trait. Considering the possible genotypes you listed in question 3, what traits would the parents of brown-eyed and blue-eyed children have to have?