Duchenne muscular dystrophy is an X-linked recessive condition affecting humans. It is a major form of...
Duchenne muscular dystrophy is an X-linked recessive condition affecting humans. It is a major form of muscular dystrophy. A female is a carrier (unaffected) and she has children with an unaffected man, and they have a boy. What is the percent probability that the boy will have the Duchenne muscular dystrophy disease? Enter your answer as a percentage value rounded to the nearest whole number. Do not enter a % sign. (i.e. enter 75, not 0.75 or 3/4)
Homework Answers
The son will have 50 percent chances of having the disease as the mother carries the gene on the sex chromosome which is passed on to son and father passes Y chromosome which is unaffeced.
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Duchenne muscular dystrophy is an X-linked recessive condition
affecting humans. It is a major form of...
1a. A boy has Duchenne muscular dystrophy, an X-linked recessive trait. His maternal uncle had died...
1a. A boy has Duchenne muscular dystrophy, an X-linked recessive trait. His maternal uncle had died of muscular dystrophy at the age of 21 years. What is the probability that this child's siblings will be affected? i. It depends whether his mother is a carrier or not ii. 50% iii. 25% iv. 75% v. 0% 1b. Neurofibromatosis type 1 is one of the most common autosomal dominant disorders. A woman with neurofibromatosis type 1 has an unaffected partner. Which of...
3. In humans, Duchenne muscular dystrophy (DMD) is a disease where muscles become weaker over time....
3. In humans, Duchenne muscular dystrophy (DMD) is a disease where muscles become weaker over time. The gene is located on the X chromosome and is recessive. Those afflicted with this disease usually die in childhood. If a female is a carrier for DMD, what percentage of her sons will inherit the disease? What percentage of her daughters will inherit the disease? 4. Eye color in fruit flies is sex linked, with the recessive allele causing white eyes. Show the...
7. The disease Duchenne Muscular Dystrophy (DMD) is caused an X-linked recessive allele. Symptoms include muscle...
7. The disease Duchenne Muscular Dystrophy (DMD) is caused an X-linked recessive allele. Symptoms include muscle tissue deterioration and loss of coordination. A boy with DMD is born to phenotypically normal parents. What is the genotype of each parent?
A married couple discovers that there was a case of the X-linked recessive disorder Duchenne Muscular...
A married couple discovers that there was a case of the X-linked
recessive disorder Duchenne Muscular Dystrophy (DMD) in the
grandparental generation on both sides of their family. the
prdigree is as follows:
i) should the DMD case on the man's side affect the anxiety
level of the couple at all? Explain.
ii)What is the probanility that their first child will be a boy
with DMD?
8. A married couple discovers that there was a case of the X-linked recessive...
John has the sex-linked recessive Duchenne muscular dystrophy, but his brother Jim is normal. Mary's family...
John has the sex-linked recessive Duchenne muscular dystrophy, but his brother Jim is normal. Mary's family has no history of DMD. What is the probability that Mary & Jim's children will have DMD? O 0% 100% for boys, 50% for girls 50% for boys, 100% for girls 50% for girls 50% for boys
Duchenne muscular dystrophy (DMD) is a disease that results in progressive muscle weakness, ultimately leading to...
Duchenne muscular dystrophy (DMD) is a disease that results in progressive muscle weakness, ultimately leading to paralysis. DMD is a genetic disease that is inherited in an X-linked recessive fashion. Two parents have a large number of children, and find that some of their children have DMD. Specifically, they find that none of their daughters have DMD, but half of their sons have DMD. a. What is the genotype the two parents? Please be sure to specify which genotype corresponds...
Duchenne muscular dystrophy (DMD) is a recessive X-linked disorder, which results in symptoms before the age...
Duchenne muscular dystrophy (DMD) is a recessive X-linked disorder, which results in symptoms before the age of 6. A young girl, diagnosed with DMD has a 46 XX karyotype. The young girl’s brother is also living with DMD. Curiously, both parents are normal. Given the information in the question, why does this young girl have DMD? (1 sentence) How does this young girl have DMD? What mechanisms and how did this mechanism lead to this girl exhibiting DMD? (1 or...
W e pressing a recessive allele? Use the following information to answer Questions 4 and 5....
W e pressing a recessive allele? Use the following information to answer Questions 4 and 5. Duchenne muscular dystrophy is an X-linked recessive disease that causes degeneration and weakness in muscles. The normal condition is represented by the superscript D, and the allele that causes Duchenne muscular dystrophy is represented by the superscript d. 4. Draw a Punnett square to show a cross between a homozygous-dominant female and a male with Duchenne muscular dystrophy. 5. Which combination of parental genotypes...
10. In man, muscular dystrophy is a condition in which the muscles waste away during early...
10. In man, muscular dystrophy is a condition in which the muscles waste away during early life and may result in a shorter life-expectancy. It is due to a sex-linked, recessive gene. A certain couple has five children - three boys (ages lyr, 3yrs, and 10yrs old) and two girls (ages 5yrs and 7yrs old). The oldest boy shows the symptoms of this disease. You are their family physician and they come to you for advice. What would you tell...
A certain type of hemophilia is X-linked recessive in humans. A woman has this disease and...
A certain type of hemophilia is X-linked recessive in humans. A woman has this disease and has children with a man who has normal blood clotting (no hemophilia). All their [ Select ] ["sons", "daughters", "children (regardless of their sex)"] will have hemophilia.
3. In humans, Duchenne muscular dystrophy (DMD) is a disease where muscles become weaker over time. The gene is located on the X chromosome and is recessive. Those afflicted with this disease usually die in childhood. If a female is a carrier for DMD, what percentage of her sons will inherit the disease? What percentage of her daughters will inherit the disease? 4. Eye color in fruit flies is sex linked, with the recessive allele causing white eyes. Show the...
7. The disease Duchenne Muscular Dystrophy (DMD) is caused an X-linked recessive allele. Symptoms include muscle tissue deterioration and loss of coordination. A boy with DMD is born to phenotypically normal parents. What is the genotype of each parent?
A married couple discovers that there was a case of the X-linked
recessive disorder Duchenne Muscular Dystrophy (DMD) in the
grandparental generation on both sides of their family. the
prdigree is as follows:
i) should the DMD case on the man's side affect the anxiety
level of the couple at all? Explain.
ii)What is the probanility that their first child will be a boy
with DMD?
8. A married couple discovers that there was a case of the X-linked recessive...
John has the sex-linked recessive Duchenne muscular dystrophy, but his brother Jim is normal. Mary's family has no history of DMD. What is the probability that Mary & Jim's children will have DMD? O 0% 100% for boys, 50% for girls 50% for boys, 100% for girls 50% for girls 50% for boys
W e pressing a recessive allele? Use the following information to answer Questions 4 and 5. Duchenne muscular dystrophy is an X-linked recessive disease that causes degeneration and weakness in muscles. The normal condition is represented by the superscript D, and the allele that causes Duchenne muscular dystrophy is represented by the superscript d. 4. Draw a Punnett square to show a cross between a homozygous-dominant female and a male with Duchenne muscular dystrophy. 5. Which combination of parental genotypes...
10. In man, muscular dystrophy is a condition in which the muscles waste away during early life and may result in a shorter life-expectancy. It is due to a sex-linked, recessive gene. A certain couple has five children - three boys (ages lyr, 3yrs, and 10yrs old) and two girls (ages 5yrs and 7yrs old). The oldest boy shows the symptoms of this disease. You are their family physician and they come to you for advice. What would you tell...
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