Concepts of Genetics (12th Edition)
12th Edition
ISBN: 9780134604718
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
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Chapter 1, Problem 15PDQ
If you knew that a devastating late-onset inherited disease runs in your family (in other words, a disease that does not appear until later in life) and you could be tested for it at the age of 20, would you want to know whether you are a carrier? Would your answer be likely to change when you reach age 40?
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If you knew that a devastating late-onset inherited disease runsin your family (in other words, a disease that does not appearuntil later in life) and you could be tested for it at the age of 20,would you want to know whether you are a carrier? Would youranswer be likely to change when you reach age 40?
A 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.
Imagine that you are in your late 30s or early 40s and decide that you want a child.
You realize that you’re at greater risk of having a child with Down’s Syndrome.
What sorts of genetic screening are available today? If you find out that this child has
this condition, do you think it’s appropriate to have an abortion? Why or why not?
Question: Does elective abortion of fetuses with physical or other developmental disabilities
have an effect on the perception of personhood, dignity, and rights in society?
Explain.
Chapter 1 Solutions
Concepts of Genetics (12th Edition)
Ch. 1 - Describe Mendels conclusions about how traits are...Ch. 1 - Review the Chapter Concepts list on p. 1. Most of...Ch. 1 - What is the chromosome theory of inheritance, and...Ch. 1 - Define genotype and phenotype. Describe how they...Ch. 1 - Given the state of knowledge at the time of the...Ch. 1 - Contrast chromosomes and genes.Ch. 1 - How is genetic information encoded in a DNA...Ch. 1 - Describe the central dogma of molecular genetics...Ch. 1 - How many different proteins, each with a unique...Ch. 1 - Outline the roles played by restriction enzymes...
Ch. 1 - What are some of the impacts of biotechnology on...Ch. 1 - Summarize the arguments for and against patenting...Ch. 1 - We all carry about 20,000 genes in our genome. So...Ch. 1 - How has the use of model organisms advanced our...Ch. 1 - If you knew that a devastating late-onset...Ch. 1 - Why do you think discoveries in genetics have been...Ch. 1 - The Age of Genetics was created by remarkable...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- DNA sequencing of your own two β-globin genes (one from each of your two Chromosome 11s) reveals a mutation in one of the genes. given this information alone, should you worry about being a carrier of an inherited disease that could be passed on to your children? What other information would you like to have to assess your risk?arrow_forwardAnother couple is concerned their child will be born with sickle cell anemia. The woman does not have sickle cell anemia. The woman’s mother had sickle cell anemia and her father was a carrier of the sickle cell gene. The man knows that he is not a carrier of the sickle cell gene. What is the probability that the child will be a carrier of sickle cell anemia?arrow_forwardAnother couple is concerned their child will be born with sickle cell anemia. The woman does not have sickle cell anemia. The woman’s mother had sickle cell anemia and her father was a carrier of the sickle cell gene. The man knows that he is not a carrier of the sickle cell gene. What is the probability that the child will be a carrier of sickle cell anemia? please include a punnett squarearrow_forward
- The father of five children begins to show symptoms of huntington disease. what is the probability that same, the man's second oldest son (11-2),, will suffer from the disease if he lives a normal life span? Sam's mother and her ancestors do not have the diseas. Sam's father was adopted, so we do not know his biological family history for hunutington disease. Explore all possible outcome for sam and explain your reasoningarrow_forwardIn humans, hemophilia is a sex-linked trait. Females can be normal, carriers, or have the disease. Males will either have the disease or not (but they won’t ever be carriers). X H X H = female, non-hemophilic X H X h = female, carrier X h X h = female, hemophilia X H Y = male, non-hemophilic X h Y= male, hemophiliac a.) Show the cross of a man who has hemophilia with a woman who is a carrier. What is the probability that their children will have the disease? b.) A woman who is a carrier marries a non-hemophilic man. Show the cross. What is the probability that their children will have hemophilia? What sex will a child in the family with hemophilia be? c.) A woman who has hemophilia marries a non-hemophilic man. How many of their children will have hemophilia, and what is their sex?arrow_forwardIn a paternity suit, a woman with type O blood claims that a man with type AB blood is the father of her type O baby. List the genetypes of the mom, man, and baby. Can the woman prove he is the father or can he is not? Why or why not? If the accused man was type A insyead of type AB, what would be his possible genotypes? Could the woman prove he is the father? Can the man prove he is not the father? Why or why not?arrow_forward
- The same lab tested Prince Harry and Megan Markle. They confirmed that Harry does have hemophilia, Megan does not have hemophilia and is not a carrier for it. Which of their offspring are at risk for having hemophilia? a-Male offspring b-Female offspring c-All offspring d-No offspringarrow_forwardA man with blood type A (whose mother was blood type O) has children with a woman that has blood type AB. The man and the woman are also heterozygous for the H antigen. What is the probability that they will have a child with blood type A? A) 0 B) 1/8 C) 3/8 D) 1/2 E) 3/4arrow_forwardAt her first prenatal visit, a woman relates that her maternal aunt has cystic fibrosis, an autosomal recessive illness. Which of the following statements is appropriate for the nurse to make? a. It is unnecessary for you to worry since our aunt is not a direct relation." b. "We can check to see whether or not you are a carrier for cystic fibrosis." c. "You should have an amniocentesis to see whether or not your child has the disease." d. Please ask your mother whether she has ever had any symptoms of cystic fibrosisarrow_forward
- Suppose a woman who is a carrier of sickle-cell trait (making her a heterozygote) has children with a man who is totally healthy and does not carry the gene for sickle-cell trait at all. Which one of the following is true about their potential children? (Draw a Punnett square on scratch paper if it helps you.) A) None of their children will have sickle-cell disease. B) All of their children will have sickle-cell disease. C) All of the couple's children would be heterozygous carriers like the mother.arrow_forwardinterpret using the punnett square below to both sets of parents (Parents A , Parents B, & Parents C).based on your results of filling in the boxes. What are the chances Parents A, Parents B, and Parents C will have a child with Sickle Cell? What are the chances the child will be a carrier for Sickle Cell?arrow_forwardWhat would the offspring's blood type be if the mother is type O+ (she is homozygous for Rh factor) and the father is A- (he is homozygous for type A)? Hint: You have to do two Punnett squares. The two Punnett squares must be shown to get the full points. After doing the Punnett squares, write down the possibilities of the offspring’s blood type.arrow_forward
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