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 to which parent.
b. Do either of these parents have the symptoms of DMD themselves?
Homework Answers
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Duchenne muscular dystrophy (DMD) is a disease that results in
progressive muscle weakness, ultimately leading to...
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?
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...
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...
Why is carrier status for Duchenne muscular dystrophy (DMD) usually not transmitted from affected fathers to...
Why is carrier status for Duchenne muscular dystrophy (DMD) usually not transmitted from affected fathers to daughters, even though this disorder has an X-linked transmission pattern
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)
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
A couple (both of which are normal) has a son that has Duchenne muscular dystrophy. This...
A couple (both of which are normal) has a son that has Duchenne muscular dystrophy. This is a rare sex-linked recessive disorder which causes muscle deterioration that almost always affects boys. The parents believe that the hospital mixed their child up with a normal child and sue the hospital. You have once again been called as an expert in genetics to testify. What do you tell the jury? Is it possible that these are the biological parents or did the...
1. A dimpled woman wants to have children and finds a suitable donor at her local...
1. A dimpled woman wants to have children and finds a suitable donor at her local sperm bank. Her genotype is Dd, and her chosen sperm donor’s genotype is dd. Her plan is to produce 3 children, and she is curious to know the probability that she will have at least two children with dimples. That probability is: 2. A dimpled woman wants to have children and finds a suitable donor at her local sperm bank. Her genotype is Dd,...
1. For each of the following blood types, list the possible genotypes: Phenotype Possible Genotypes A B...
1. For each of the following blood types, list the possible genotypes: Phenotype Possible Genotypes A B AB O 2. Dr. Paul is blood type O. His father was blood type A and his mother was blood type B. What were the genotypes of his parents? What are the possible blood types and phenotypic ratios expected for a cross involving these parental genotypes? 3. In the ABO blood system in human beings, alleles A and B are codominant and both are...
Name Sex-linked traits are genetic char segments of DNA found on chromosomes that Sex-Linked Traits Senetic...
Name Sex-linked traits are genetic char segments of DNA found on chromosomes that Sex-Linked Traits Senetic characteristics determined by genes located on sex chromosomes. Genies are and on chromosomes that carry information for protein production and that are sponsible for the inheritance of specific traits Genes exist in alternative forms called alleics. or a trail is inherited from each parent Like traits originating from genes on autosomes (non-se chromosomes), sex-linked to omosomes), sex-linked traits are passed from parents to offspring...
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?
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...
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
Name Sex-linked traits are genetic char segments of DNA found on chromosomes that Sex-Linked Traits Senetic characteristics determined by genes located on sex chromosomes. Genies are and on chromosomes that carry information for protein production and that are sponsible for the inheritance of specific traits Genes exist in alternative forms called alleics. or a trail is inherited from each parent Like traits originating from genes on autosomes (non-se chromosomes), sex-linked to omosomes), sex-linked traits are passed from parents to offspring...
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