Which statements about nonadaptive traits are true? (CHECK ALL THAT APPLY) Nonadaptive traits make it less likely that an organism will survive in a particular environment Nonadaptive traits are difficult to pass from generation to generation Nonadaptive traits make it more likely that an organism will survive in a particular environment Nonadaptive traits are easily passed from generation to generation

Which statements about nonadaptive traits are true? (CHECK ALL THAT APPLY) Nonadaptive traits make it less likely that an organism will survive in a particular environment Nonadaptive traits are difficult to pass from generation to generation Nonadaptive traits make it more likely that an organism will survive in a particular environment Nonadaptive traits are easily passed from generation to generation

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter1: A Perspective On Human Genetics

Section1.3: What Are Genes And How Do They Work?

Problem 1EG: Ancient societies used knowledge that traits are heritable in domesticating animals and developing...

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After the rediscovery of Mendel’s principles of inheritance in the earlytwentieth century, eugenics became popular in many countries,including the United States. The eugenic movement proposed toimprove the human species through the application of genetics. Anumber of eugenic laws were passed, prohibiting the marriage ofpeople with certain conditions and allowing for the involuntarysterilization of others. Eventually this practice fell into disfavorbecause of ethical concerns and because many of the laws were basedon bad science. Some people think that the increasing use of moderngenetic techniques to test for genetic diseases and traits and tomanipulate reproductive outcomes representsthe resurgence of eugenics. What are some ethical concerns associatedwith encouraging the birth of people with desirable traits anddiscouraging the birth of those with undesirable traits?
Among the most prevalent pathologies that afflicthuman beings is heart disease, which can have a severeimpact on quality of life and can even result in prematuredeath. While heart disease mostly afflicts those who areolder, 1% or 2% of people in their 30s, and even in their20s, suffer from this disease. Genetic and environmentalcomponents of this disease exist. What strategy mightyou use to choose families to participate in a GWAS ofheart disease–causing genes? Explain your reasoning.
Macular degeneration is a serious disease of the eyes that can lead to blindness. A recent study suggeststhat nutrients such as lutein and zeaxanthin, found in green leafy vegetables, can slow the onset andprogress of this disease in humans. In the study, a group of 2000 older individuals were contacted throughrandom digit dialing and asked about their eating habits. (Macular degeneration usually manifests later inlife.) The group who ate green leafy vegetables fewer than two times a week had a significantly higher rateof macular degeneration (25% higher) than those who ate green leafy vegetables five or more times perweek. They also had a higher rate (5%) of cases that were considered severe among those who had thedisease.(a) Determine whether the study is an observational study or an experiment. Explain how you know.(b) If the study is an experiment, identify the control and treatment groups. If the study is observational,state whether it is a case-control study, and if so, identify…
What are some examplesof phenotypical characteristicsthat present two or morevarieties and of phenotypicalfeatures that do not vary? Inrelation to the genescorrespondent to thosecharacteristics that varyamong individuals what canbe expected about theiralleles?
Explain why it does not make sense to try to separatethe effects of genes (“nature”) and the environment(“nurture”) in a single individual, while it does make senseto separate genetic and environmental effects on differencesamong individuals.
Explain why you agree or disagree with each of thefollowing statements:a. We should not worry much about exposure totoxic chemicals because almost any chemical, at alarge enough dosage, can cause some harm.b. We should not worry much about exposureto toxic chemicals because, through geneticadaptation, we can develop immunities to suchchemicals.c. We should not worry much about exposureto toxic chemicals because we can use geneticengineering to reduce our susceptibility to theireffects.d. We should not worry about exposure to a chemical such as bisphenol A (BPA) because it has notbeen absolutely proven scientifically that BPA haskilled anyone.
Roughly 30% of harvested cantaloupesare wasted because they become overripebefore reaching consumers. Agricultural scientistshave used genetic engineering to insert an applegene into the cantaloupe genome to produce atransgenic (GM) cantaloupe that ripens more slowlyafter harvesting. Is this approach less desirablethan the marker-assisted breeding describedabove? Why or why not?
You are a USDA official and mustdecide whether to allow the planting of a new geneticallymodified strain of cabbage that produces its own pesticideand has twice the vitamin content of regular cabbage.What questions would you ask of scientists before decidingwhether to approve the new crop? What scientific datawould you want to see? Would you also consult nonscientistsor consider ethical, economic, and social factors?
Someone's subjective v x sons/3007531/variants/3201562/take/2/ e help... It used to be, everyone was entitled to their own opinion, but not their own facts. But that's not the case anymore." MULTIPLE CHOICE Can you tell a fact from an opinion? Can you tell when an idea follows logically from a fact? Basing ideas on facts is essen- tial to good science. Science is a set of facts, and it is also a set of explanations that are based on those facts. Science re- lies on facts to explain the natural world. Someone's subjective view or position on a subject is called A B C data Amazon Music Unlimite X a fact an opinion M Can anybody help me x DBO Stephen Colbert AV Club Interview, January 2006 Attempt 1 of 2 Practice + Meurtres alus Sep
In domesticated dogs, size has a high heritability, andthe trait is determined by only a small number ofgenes. In contrast, genetic variation at more than180 QTLs explains only a very small proportion ofthe high heritability for height in humans. What couldexplain the missing heritability in humans, and howcould you test your hypothesized explanations?
point pu What is the most appropriate description of the role of heritability in bbesity? O The huge impact of rare mutations in specific genes on obesity illustrates the important role of heritability in the current obesity epidemic. O The role of heritable factors is equally important for obesity as it is for height. O The role of heritable factors in obesity has remained relatively dormant for centuries until the emergence of the obesogenic environment brought them to life. O The role of heritability in obesity is very limited as our genes haven't changed over the past 50 years yet the population has become a lot more obese.
Suppose an individual organism aids the survival andreproductive success of the offspring of its sibling. Howmight this behavior result in indirect selection for certaingenes carried by that individual?