Answer the given situation below; a. Bob says that he is healthy and has no genetic diseases such as hemophilia or Down syndrome. Therefore, he says, genetics plays little role in his life. Why do you think Bob is incorrect in his conclusion? Explain your answer.
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- The purpose of this assignment is to understand the principles of Mendelian and human genetics and the structure of DNA and how genetic code is converted to protein. After completing the three Unit 6 Labs on Connect (above), apply critical thinking to answer the following:1. Fruit Flies and Genetics Research: Imagine you are working in a genetics lab with the fruit fly Drosophila melanogaster, a model organism for genetics research. You want to determine whether a trait you have discovered in fruit flies is dominant or recessive.• Explain how you would design an experiment to answer this question.• Predict what types of outcomes are possible. Which would indicate that the trait is dominant? Which would indicate that it is recessive?2. Model Genetic Organisms: Why are fruit flies considered a model genetic organism? Would humans fit this description?A male presenting with clinical features as greater height, poor coordination, less body hair, breast growth and seems less interest in sex. He is also facing difficulty in speech. What your knowledge depicts that he is suffering from which genetic disease.A couple contemplating a pregnancy are in today for an appointment at a genetic counselling clinic to identify and interpret their risk of an inherited disorder. The explains during teaching that the following statements are true about genetic counseling EXCEPT a. Talking about rewarding gene therapy b. Performing appropriate genetic testing c. Constructing family pedigree up to the third degree d. Refer to support groups e. Collecting health files about affected family members
- Use the following information to answer the next five questions. During the summer of 2013 it was determined that a small Nigerian village had a population of 2,089 people. The per capita incidence of people born with sickle- cell anemia (an autosomal recessive disease) in this village, was the highest in the country with 324 people in this population having the condition. The people with sickle-cell anemia require extensive therapy for this otherwise lethal disease. However, a heterozygous advantage exists with carriers of the sickle-cell allele providing resistance to malaria, a lethal disease that is highly prevalent in this village. People heterozygous for the sickle cell allele produce an environment in some of their blood cells that is toxic to the parasite that causes malaria. Show ALL calculations 1. Calculate the phenotypic frequency of sickle- cell anemia in this population expressed as a number between 0 and 1 and rounded to 2 decimal places 2. Calculate the frequency of the…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.Tom and Gina are expecting their first child. A genetic screening indicated there was a chance that the couple would conceive a severely disabled child. The doctor is concerned that the couple may decide to abort the child, which the doctor religiously objects to. He does not share the results of the testing with Tom and Gina. Share your reflection of the legal or ethical implications of this scenario.
- Create a hypothetical person and situation as a real life example to illustrate your position. Who is this person? How old is this person? What chromosomal abnormalities does this person have? How does genetic testing and counseling make this person’s life better or worse? Ultimately, should your hypothetical person seek genetic counseling?You met with two parents whose first child has sickle cell anemia. (The parents show no signs of the disease themselves). The mother comes to you in the third month of her second pregnancy, and wants to know if this child will also inherit the disease. As a genetics counselor, you are ready to evaluate this couple’s case by doing the following:1. Determine what the genotype of each parent is. Is this disease autosomal or sex-linked? Dominant or recessive?Use the following information to answer the next question. In the 19th century, individuals who were not among the "normal" population were often thought to be failures or defectives. Early in the 20th century, the interaction of genetics, law and society resulted in policies of enforced sterilization, restrictive immigration, and institutionalization of those thought to be genetic defectives. As this century closes, society will haev difficult choices to make about the legality, morality, and economics of applying genetic knowledge and technology. The difficulty of this situation is summarized in the words of a famous geneticist, Theodosius Dobzhansky (b. 1900 - d. 1975) "If we enable the weak and the deformed to live and produce more of their kind, we face the prospect of a genetic twilight (decline). but if we let them die or suffer when we can help them, we face the certainty of a moral twilight."
- Part of the difficulty of the genetics unit is knowing what type of problem you are being asked to solve and then solving it correctly. The following problems are a mix of normal Mendelian inheritance, incomplete dominance, co-dominance, sex-linked, and dihybrid crosses. Complete each of the problems below. Show your work! It’s difficult for me to know where you are making your mistakes (and help you to correct them) if I cannot see how you completed the problem. The genes for hemophilia, a condition that causes blood not to clot properly, are located on the X chromosome. It is a recessive disorder. A man normal for blood clotting has children with a woman who is a carrier of the condition but still clots normally. What percentage of the male offspring will have normal clotting? _______________ % What percentage of the male offspring will have hemophilia? _______________ %Part of the difficulty of the genetics unit is knowing what type of problem you are being asked to solve and then solving it correctly. The following problems are a mix of normal Mendelian inheritance, incomplete dominance, co-dominance, sex-linked, and dihybrid crosses. Complete each of the problems below. Show your work! It’s difficult for me to know where you are making your mistakes (and help you to correct them) if I cannot see how you completed the problem. in certain fish, the mating of a black (B) fish with a white (W) fish will create offspring with a patchwork of black and white scales. What type of inheritance pattern is this?_____________________________________________ If a black and white fish is crossed with a black fish, what percentage of the fish will be: Black? ___________% White? ____________% Black and white? ___________%Part of the difficulty of the genetics unit is knowing what type of problem you are being asked to solve and then solving it correctly. The following problems are a mix of normal Mendelian inheritance, incomplete dominance, co-dominance, sex-linked, and dihybrid crosses. Complete each of the problems below. Show your work! It’s difficult for me to know where you are making your mistakes (and help you to correct them) if I cannot see how you completed the problem. Grasshoppers are black with red stripes (R), yellow stripes (Y), or both red & yellow stripes (RY). A red-striped grasshopper is crossed with red & yellow-striped grasshopper. What type of inheritance pattern is this?__________________________________________ Genotypic ratio: _____________________________ Phenotypic ratio: ____________________________