Homework Answers
Answer -- 0%
Mitochondrial disorder are passed on only from the mother to the child.The paternal mitochondrial DNA is present in the sperm.This will be destroyed once the egg is fertilised.So the father with mitochondrial disorder is not at risk of passing it onto the children.So the answer is 0%.
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Question 45 1 pts A man and his sister are both affected with a mitochondrial disorder....
need help with correct answers. A 21-year-old soldier disappeared in Vietnam. Forty years later, bones are di...
need help with correct answers.
A 21-year-old soldier disappeared in Vietnam. Forty years later, bones are discovered that may include his remains. Which available living relative's mitochondrial DNA would be the most accurate sample to obtain for comparison to determine whether the bones belong to the soldier? Sister's son O Brother's son O Daughter O Father Question 55 1 pts Which of the following is a hereditary disease characterized by excessive intestinal absorption of a dietary iron resulting in a...
Question 25 1 pts Achondroplasia shows autosomal dominant inheritance with complete penetrance. A man with achondroplasia...
Question 25 1 pts Achondroplasia shows autosomal dominant inheritance with complete penetrance. A man with achondroplasia has an unaffected partner of normal height. Their first two children are not affected. Which of the following is correct? O The mother of these children has a sister with achondroplasia. This increases the risk that the children could be carriers. O The probability that their next child will be affected is 1 in 2 If their third child is unaffected, the probability that...
Jack and his wife, Angela (27), have been referred to you by Angela’s gynecologist. Jack, a...
Jack and his wife, Angela (27), have been referred to you by Angela’s gynecologist. Jack, a healthy male, has a family history of anhidrotic ectodermal dysplasia (ED). The couple has one unaffected son, aged 2 years, and are contemplating having a second child. Ectodermal dysplasia is a disorder characterized by absence of sweat glands and malformed or missing teeth. Some persons having ED also have unusual hair growth patterns and mental retardation. Persons having the disease are at risk of...
A man and a woman walk into a genetic counselor’s office. The man’s brother has recently...
A man and a woman walk into a genetic counselor’s office. The man’s brother has recently been diagnosed with Duchenne muscular dystrophy. The woman has no history of the illness in his family. a) They are concerned about having an affected child themselves. The woman is pregnant with a girl. Diagram this cross. What is the chance that the child the woman carries will have the disorder? a) If they have additional children, would a sperm or egg donor help...
8. [12 pts total] Huntington disease is a rare degenerative autosomal disorder that determined by a...
8. [12 pts total] Huntington disease is a rare degenerative autosomal disorder that determined by a dominant allele. The disorder is typically manifested after the age of 45. A young man has learned that his father has developed the disease; his mother does not carry the dominant allele for the condition [4 pts] A. What is the probability that the young man will later develop the disease? (4 pts] B. If the young man has a child with a woman...
gron's Disease is inherited as a dominant gene. Show with a Punnett square the chances of...
gron's Disease is inherited as a dominant gene. Show with a Punnett square the chances of escaping this disease if one parent has it. Miss X has a sister with cystic fibrosis, a recessive genetic disorder. Mr. Z also has a sister with cystic fibrosis. Neither Miss X nor Mr. Z has CF. They want to start a family. The have decided to adopt children because the risk of having a child with cystic fibrosis is 50%. Are they correct...
Tom has 46 chromosomes and Tracy has only 45 chromosomes, both are phenotypically wild-type. Their first...
Tom has 46 chromosomes and Tracy has only 45 chromosomes, both are phenotypically wild-type. Their first boy Lucas has only 45 chromosomes and has a wild type phenotype, whereas their second son Evan has 46 chromosomes and he has Down syndrome. 1. Draw chromosomes 15 and 21 for each of the family members and explain their genotypes and phenotypes 2. Tracy is 24 years old and pregnant again. Should she be concerned about having another child with Down syndrome. Explain...
A man who has pointed ears came to the attention of a geneticist. The geneticist finds...
A man who has pointed ears came to the attention of a geneticist. The geneticist finds the following: Pointy ears are an inherited trait due to a single genetic locus. The man's sister has pointed ears, but his mother, father, his brother, and other sister have normal ears. The man and his normal-eared wife are first cousins and have seven children, including four boys and three girls. Two girls and two boys have pointy ears; the boys with pointy ears...
Follow-Up Questions 1. Your brother has an autosomal recessive disorder, while you are unaffected. Neither one...
Follow-Up Questions 1. Your brother has an autosomal recessive disorder, while you are unaffected. Neither one of your parents is affected. Explain how this is possible. 2. Using the above situation, what is the probability that you carry the recessive allele? 3. A couple wants to have a child, but the mother has a brother who is affected by cystic fibrosis. They seek out the advice of a genetic counselor at their local hospital to determine what, if any, chance...
5. A 23-year-old unemployed man, is addicted to cocaine. He lives with his mother and sister...
5. A 23-year-old unemployed man, is addicted to cocaine. He lives with his mother and sister and has been stealing money from them to pay for his cocaine. His mother persuaded him to voluntarily commit himself to the hospital for treatment of his substance abuse. In the initial assessment interview, the nurse learns that he began smoking marijuana at age 19 and occasionally consumes alcohol. He said that he started on cocaine after his father, who had a history of...
need help with correct answers.
A 21-year-old soldier disappeared in Vietnam. Forty years later, bones are discovered that may include his remains. Which available living relative's mitochondrial DNA would be the most accurate sample to obtain for comparison to determine whether the bones belong to the soldier? Sister's son O Brother's son O Daughter O Father Question 55 1 pts Which of the following is a hereditary disease characterized by excessive intestinal absorption of a dietary iron resulting in a...
Question 25 1 pts Achondroplasia shows autosomal dominant inheritance with complete penetrance. A man with achondroplasia has an unaffected partner of normal height. Their first two children are not affected. Which of the following is correct? O The mother of these children has a sister with achondroplasia. This increases the risk that the children could be carriers. O The probability that their next child will be affected is 1 in 2 If their third child is unaffected, the probability that...
8. [12 pts total] Huntington disease is a rare degenerative autosomal disorder that determined by a dominant allele. The disorder is typically manifested after the age of 45. A young man has learned that his father has developed the disease; his mother does not carry the dominant allele for the condition [4 pts] A. What is the probability that the young man will later develop the disease? (4 pts] B. If the young man has a child with a woman...
gron's Disease is inherited as a dominant gene. Show with a Punnett square the chances of escaping this disease if one parent has it. Miss X has a sister with cystic fibrosis, a recessive genetic disorder. Mr. Z also has a sister with cystic fibrosis. Neither Miss X nor Mr. Z has CF. They want to start a family. The have decided to adopt children because the risk of having a child with cystic fibrosis is 50%. Are they correct...
Follow-Up Questions 1. Your brother has an autosomal recessive disorder, while you are unaffected. Neither one of your parents is affected. Explain how this is possible. 2. Using the above situation, what is the probability that you carry the recessive allele? 3. A couple wants to have a child, but the mother has a brother who is affected by cystic fibrosis. They seek out the advice of a genetic counselor at their local hospital to determine what, if any, chance...
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