Why do identical twins become increasingly different over time? In your response, use the w s: epigenetic tags; gene Percent of twin pairs who share the trait Use the graph to justify 100% greater penetic why DNA alone does not determine susceptibility Height Reading Disability to disease in identical and fraternal twins. Autism In your response, use the words: genetic influence; Auheimer's environmental influence Schzoptrenia Alcoholism ipolar Disorder Hypartension Diabetes Multiple Sclerosis Broast Cancer Crohn's disoase Stroke al T Fheumatoid Atvitis Frateal Twie

Why do identical twins become increasingly different over time? In your response, use the w s: epigenetic tags; gene Percent of twin pairs who share the trait Use the graph to justify 100% greater penetic why DNA alone does not determine susceptibility Height Reading Disability to disease in identical and fraternal twins. Autism In your response, use the words: genetic influence; Auheimer's environmental influence Schzoptrenia Alcoholism ipolar Disorder Hypartension Diabetes Multiple Sclerosis Broast Cancer Crohn's disoase Stroke al T Fheumatoid Atvitis Frateal Twie

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter10: Control Of Gene Expression

Section: Chapter Questions

Problem 2DAA

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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?
If your father were diagnosed with an inherited disease that develops around the age of 50, would you want to be tested to find out whether you would develop this disease? If so, when would you want to be tested? As a teenager or sometime in your 40s? If not, would you have children?
From a biological viewpoint, speculate as to why many traits seemto fit a normal distribution. Students with a strong background inmath and statistics may want to explain how a normal distributionis generated, and what it means. Can you think of biological examplesthat do not fit a normal distribution?
Pseudohypertrophic muscular dystrophy is an inheriteddisorder that causes gradual deterioration of the muscles. It isseen almost exclusively in boys born to apparently unaffectedparents and usually results in death in the early teens. Isthis disorder caused by a dominant or a recessive allele?Is its inheritance sex-linked or autosomal? How do youknow? Explain why this disorder is almost never seen in girls.
Huntington disease is a rare dominant condition in humans that results in a slow but inexorable deteriorationof the nervous system. The disease shows what mightbe called age-dependent penetrance, which is to saythat the probability that a person with the Huntingtongenotype will express the phenotype varies with age.Assume that 50% of those inheriting the HD allele willexpress the symptoms by age 40. Susan is a 35-yearold woman whose father has Huntington disease. Shecurrently shows no symptoms. What is the probabilitythat Susan will show symptoms in five years?
For Mendelian inheritance, the nuclear genotype (i.e., the allelesfound on chromosomes in the cell nucleus) directly influences anoffspring’s traits. In contrast, for non-Mendelian inheritance patterns, the offspring’s phenotype cannot be reliably predicted solelyfrom its genotype. For the following traits, what do you need toknow to predict the phenotypic outcome?A. Dwarfism due to a mutant Igf2 alleleB. Snail coiling directionC. Leber hereditary optic neuropathy
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.
Plsssssss helppppppp, should an individual have have children if they know there is a chance they could pass on a trait that could have negative health consequences? Should individuals screen their genes through their health care provider before deciding to have children?
* I asked this question already however they did not answer completely… Review the transmission of dominant and recessive traits by filling in the blanks in the following sentences shoes from the words in the word bank.
Plsssssssss helppppppppp, how can NF1 be spontaneous? Include the following terms: -genotype - phenotype - homozygous - heterozygous - inheritance - alleles - dominant - recessive
Do people look differently upon those afflicted with mental illness if we have a perspective grounded in an understanding that this is a genetic diagnosis? How so?
Ancient societies used knowledge that traits are heritable in domesticating animals and developing agricultural crops. What might account for the failure to recognize that the same processes operate in humans?