Nutrition Through the Life Cycle (MindTap Course List)
6th Edition
ISBN: 9781305628007
Author: Judith E. Brown
Publisher: Cengage Learning
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Chapter 9, Problem 7RQ
Summary Introduction
To identify: A genetic condition that is not found by maternal or newborn screening.
Introduction: Genetic disorder is a condition caused by any abnormalities in genetic content of an individual. Genetic diseases are mainly caused by the single-base mutation. Single base mutations are capable of imparting biochemical, functional, and structural abnormalities in the organism.
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Explain whether the woman having genes for high risk for developing cancer and Alzheimer disease is morally or legally obligated to tell her children and close relatives about the genetic testing.
match the following about Genetic testing and Screeningprompts: genetic testing, genetic screening, genetic screening programs, Genetic screening opportunities, A test with high sensitivity, A test with high specificity, Predictive tests, Pre-symptomatic tests, Predispositional tests.Answers: - indicate the presence of a causative genotype but the onset of signs and symptoms is not certain.- involves testing individuals for the genetic change underlying a condition for which there is no evidence. - is preformed cases where the onset of signs and symptoms is considered inevitable. - are offered as part of our public health service.- can show that an individual is more likely than others to develop a specified condition.- do not include conditions that show incomplete penetrance.- has a low false positive rate.- has a low false negative rate. - involves testing individuals for the genetic change underlying a condition for which there is evidence.
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Nutrition Through the Life Cycle (MindTap Course List)
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- Please answer with reason: 1) The nurse is explaining the inheritance of Huntington disease (autosomal dominant) to a newly diagnosed patient whose partner does not have the gene mutation. Which statement should the nurse make regarding family planning? a. There is a 100% chance with each pregnancy that the child will inherit the gene for Huntington disease. b. There is a 50% chance with each pregnancy that the child will inherit the gene for Huntington disease c. There is a 25% chance with each pregnancy that the child will inherit the gene for Huntington disease d. There is a 0% chance with each pregnancy that the child will inherit the gene for Huntington disease.arrow_forwardPedigree 1: What is the most likely mode of inheritance of this disease given its pattern on the pedigree? Autosomal Dominant Autosomal Recessive O X-Linked Dominant O X-Linked Recessivearrow_forwardWhat is the little girl's blood type?arrow_forward
- Please find an Image/Graphic to represent sickle cell disease: Use at least two different images to help the audience understand the cause and/or inheritance pattern of the disorder you chose. Include a brief 1-2 sentence caption below each image that gives a description of the image and explains its relevance to your chosen disorder. The two images should NOT convey the same exact information. Ideas of images to use include: karyotypes, pedigrees, DNA sequences, etc. Please note: the images should be specific to your chosen disorder. The 2 required images must be related to cause and/or inheritance pattern. Images of an individual with the disorder will not count toward your 2 required images as they do not contribute to the audience's understanding of cause and/or inheritance pattern.arrow_forwardA couple, who are both normal, have a daughter who is albino and a son who is normal. a) what is the probability that their normal son is a carrier of the albinism gene? Show your work. b) the couple wants to have 3 more children; what is the probability that they will have 3 normal girls? Show your work.arrow_forwardMatch the following : Genetic testing Genetic screening Genetic screening programs Genetic screening opportunities A test with high senstivity A test with high specificity predictive tests Pre- symptomatic tests Pre dispositional test involves testing individuals for the genetic change underlying a condition for which there is no evidence. can show that an individual is more likely than others to develop a specified condition. indicate the presence of a causative genotype but the onset of signs and symptoms is not certain. are offered as part of our public health service. do not include conditions that show incomplete penetrance. is performed cases where the onset of signs and symptoms is considered inevitable. involves testing individuals for the genetic change underlying a condition for which there is evidence. has a low false positive rate has a low false negative ratearrow_forward
- Huntington disease (HD) is a genetic disorder that usually first appears in middle age and, over time, leads to involuntary movements, impaired speech, difficulty swallowing and speaking, and cognitive decline. There is no cure for HD, and affected individuals eventually die, usually after 10 to 15 years of progressively worsening symptoms. Huntington disease is inherited as an autosomal dominant disorder. Presymptomatic genetic testing for HD is available for people with a family history of the disease. Individuals who have a parent with HD have a 50% chance of inheriting the HD gene and eventually having HD. Some of these individuals want to know if they will eventually get the disease, and they undergo presymptomatic genetic testing. Others do not want to know, given that there is no cure or effective treatment for the disease. If you were at risk for HD, would you want to undergo genetic testing? What are some reasons for and against having a genetic test for HD?arrow_forwardWhat is genetic counseling? Briefly describe genetic counseling and give an example.arrow_forwardHemophilia is due to a sex-linked gene. It is recessive and found on the X chromosome. A woman who is a carrier for hemophilia marries a normal man. What will be the possible phenotypes of their children? (use the letter “H”)arrow_forward
- Alfred is heterozygous for tongue rolling and has five fingers. Alfreda, his wife, cannot roll her tongue and is heterozygous for polydactyly. Use R/r for tounge rolling, P/p for polydactyly. What is Alfred’s genotype? ____________ What is Alfreda’s genotype? ____________arrow_forwardParents Genotype : Bb/bb – Eye Color - (brown eyes dominant , blue eyes recessive) Dd- Dimples ( dominant) Cc/cc- Cleft chin (Dominant) Sarah BbDdcc James bbDdCc If they plan to have 4 children, what is the probability of having: a) all girls with blue eyes and dimples b) 2 children with dimplesarrow_forward1) Based on the testing outcome, give your opinion on whether you think Cystic Fibrosis is a dominant or recessive disorder. a) Probably dominant. b) Probably recessive. c) Neither. d) Not enough information is provided to answer this question.arrow_forward
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