Question

22. Fill in the blank. Duchenne muscular dystrophy is caused by an X-linked recessive mutation in...

22. Fill in the blank.

Duchenne muscular dystrophy is caused by an X-linked recessive mutation in the DMD gene, which encodes the protein dystrophin. A female without the disease mates with a male with Duchenne muscular dystrophy; they have two sons and two daughters. The first son has the disease as does their first daughter. Based on this, the probability that the second son will have the disease is __________. The probability that the second daughter will be a carrier is _________.

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer=The probability that the second son will have the disease is 1/2 The probability that the second daughter will be a carrier is 1/2

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Duchenne muscular dystrophy, or DMD, is the result of a recessive allele. If a woman with...
Duchenne muscular dystrophy, or DMD, is the result of a recessive allele. If a woman with DMD and a man without DMD have children, all of the sons will have DMD, but none of the daughters will. Why does this occur? DMD is sex-linked, and all daughters will inherit a dominant allele from their father. DMD is sex-linked, and all sons will receive a recessive allele from their father. Multiple alleles control the expression of DMD in daughters, who have...
Duchenne muscular dystrophy (DMD) is recessive sex (or X)-linked disorder, which causes muscle degeneration and premature...
Duchenne muscular dystrophy (DMD) is recessive sex (or X)-linked disorder, which causes muscle degeneration and premature death. A couple is pregnant with a boy and neither has DMD. The father’s family has no history of DMD, but the mother is unsure of her genetic family history as she was adopted. The mother decides to take advantage of some of the new genomic screening tests and learns information about a large number of her genes. She finds that she is a...
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. a. Given the information in the question, why does this young girl have DMD? (1 sentence) b.How does this young girl have DMD? What mechanisms and how did this mechanism lead to this girl exhibiting DMD? (1...
A four yo male has been diagnosed with Duchenne Muscular Dystrophy (DMD). His diagnosis is confirmed...
A four yo male has been diagnosed with Duchenne Muscular Dystrophy (DMD). His diagnosis is confirmed by genetic testing. Duchenne Muscular Dystrophy is a severe, debilitating and progressive muscle wasting disease in which children become wheelchair-bound by their early teens and usually die in their twenties. Duchenne Muscular Dystrophy is an x-linked recessive genetic condition and whilst it is carried by girls it is only (with very rare exceptions) boys who are affected. The boy’s mother, Alison, is shown to...
Hemophilia A is caused by an X-linked recessive mutation. A man with hemophilia A is a...
Hemophilia A is caused by an X-linked recessive mutation. A man with hemophilia A is a sickle cell carrier. He has children with a woman who is a carrier of the sickle cell trait; she does not have hemophilia A, but her father did. What is the chance that they have a daughter who carries the hemophilia A mutation and does not carry the sickle cell mutation? 1/8 2/16 4/16 1/4 3/16 1/16 3/8 9/16
Lesch-nyhan syndrome is an x-linked, rare, recessive disease caused by a mutation in the gene encoding...
Lesch-nyhan syndrome is an x-linked, rare, recessive disease caused by a mutation in the gene encoding for hypoxanthine-guanine phosphoribosyltransferase (HPRT1). A woman’s maternal grandfather suffered from lesch-nyhan syndrome. She is concerned her male child could have lesch-nyhan syndrome. Genetically, what is the chance that this child has lesch-nyhan syndrome? a.) 0 b.) 1/8 c.) 1/4 d.) 1/16 e.) 1/2
Hemophilia is caused by several genetic factors; one, a recessive allele of an X- linked gene,...
Hemophilia is caused by several genetic factors; one, a recessive allele of an X- linked gene, is the subject of this problem. Assume that a man with hemophilia marries a normal woman whose father had hemophilia. What is the probability that their first son will have hemophilia? 1. 1/16 2. 1/8 3. 1/4 4. 1/2 5. 3/4
For problem 1, to compute probabilities, the probability of event 1 AND event 2 is obtained...
For problem 1, to compute probabilities, the probability of event 1 AND event 2 is obtained by multiplying the two probabilities together, whereas the probability of event 1 OR event 2 is obtained by adding the two probabilities. 1.   Duchenne muscular dystrophy (DMD) is a condition that causes muscle degeneration and then death. Most people with the condition are wheelchair-bound by age 12 and dead before age 30.      The condition is due to a mutation in the gene for...
The CFTR gene is carried on human chromosome 7, an autosome. A recessive mutation in CFTR...
The CFTR gene is carried on human chromosome 7, an autosome. A recessive mutation in CFTR is the cause of cystic fibrosis disease. A female who doesn't have cystic fibrosis has a child with a man who also doesn't have the disease. Their first child has cystic fibrosis. What is the probability their second child will have the disease?
In humans the sex of an individual is determined by the sex chromosomes that they inherit....
In humans the sex of an individual is determined by the sex chromosomes that they inherit. All individuals carry two sex chromosomes, but males carry a so-called X and a Y chromosome (and are thus called XY) whereas females carry two X chromosomes (and are thus called XX). When a male and female produce an offspring, each gives the offspring one of its sex chromosomes, chosen with equal probability. Thus, a child always inherits an X chromosome from its mother...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT