Draw a pedigree chart for the following scenarios and answer the questions:1. A woman's sister has cystic fibrosis, a disease caused by recessive genes.Neither of her parents has the disease. What chance is there that her motheris a carrier (heterozygous) for the trait? What chance is there that the womanherself is a carrier for the trait?2. Huntington's disease is a degenerative disease of the nervous system whichdoes not show up until age 40. It is caused by a dominant gene. John's fatherjust began to show the symptoms. What is the chance that John will have thedisease?3. The pedigree below shows the blood types of some individuals. List all ofthe possible genotypes of the individuals and determine the blood group ANDgenotype of the missing blood groups.BAB

Name: Draw a pedigree chart for the following scenarios and answer the ques
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: Draw a pedigree chart for the following scenarios and answer the questions:1. A woman's sister has cystic fibrosis, a disease caused by recessive genes.Neither of her parents has the disease. What chance is there that her motheris a carrier (heteroz

Science

Biology

Draw a pedigree chart for the following scenarios and answer the questions: 1. A woman's sister has cystic fibrosis, a disease caused by recessive genes. Neither of her parents has the disease. What chance is there that her mother is a carrier (heterozygous) for the trait? What chance is there that the woman herself is a carrier for the trait?

Draw a pedigree chart for the following scenarios and answer the questions: 1. A woman's sister has cystic fibrosis, a disease caused by recessive genes. Neither of her parents has the disease. What chance is there that her mother is a carrier (heterozygous) for the trait? What chance is there that the woman herself is a carrier for the trait?

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter20: Chromosomes And Human Genetics

Section: Chapter Questions

Problem 7CT: The following pedigree shows the pattern of inheritance of red-green color blindness in a family....

See similar textbooks

Similar questions

The following pedigree shows the pattern of inheritance of red-green color blindness in a family. Females are shown as circles and males as squares; the squares or circles of individuals affected by the trait are filled in black. What is the chance that a son of the third-generation female indicated by the arrow will be color blind if the father is not color blind? If he is color blind?
A couple who are about to get married learn from studying their family histories that, in both their families, theirunaffected grandparents had siblings with cystic fibrosis(a rare autosomal recessive disease).a. If the couple marries and has a child, what is theprobability that the child will have cystic fibrosis?b. If they have four children, what is the chance that thechildren will have the precise Mendelian ratio of 3:1 fornormal:cystic fibrosis?c. If their first child has cystic fibrosis, what is theprobability that their next three children will be normal?
What are the genotypes of the mother and father in the pedigree below? The pedigree shows albinism (an autosomal recessive trait). The shaded shapes represent albino individuals. a. mother - homozygous dominant; father - homozygous dominant b. mother - heterozygous; father - homozygous recessive c. mother - homozygous recessive; father - heterozygous d. mother - heterozygous; father - heterozygous e. mother - homozygous dominant; father - homozygous recessive
Using the given pedigree chart, suppose individuals III-1 and III-2 are expecting their sixth child. What is the chance (percent) that the sixth child will have the sickle cell trait?
Read the following family history and draw a pedigree to determine the inheritance pattern for achondroplasia. Once the pedigree is assembled , label the genotypes of each individual using a capital "A to represent the dominant allele and a lower case "a " to represent the recessive allele and create a key to identify which version is the achondroplasia allele. If you are unsure of the genotype , label the individual with a "" in place of the unknown allele. Family History : Jada and Noel , both of short stature, have been married for twenty years. They have three children : an eighteen - year-old boy named Shawn , of short stature ; a fifteen- year- old boy named John , of short stature ; and a twelve -year -old girl named Ann , of average height Noel and Jada also had a male child bom with severe achondroplasia who died six months after birth from respiratory failure . Noel's father was of short stature , while his mother was average height . Noel has a brother and a…
Answer 2 Duchenne muscular dystrophy is a sex-linked recessive disorder characterized by a progressive loss of muscle tissue. Neither Carla nor Rudy has Duchenne muscular dystrophy, but their first son does have it. What can you say about Rudy's or Carla's genotype in relation with the disorder? If the couple has a second child, what is the probability that he or she will also have the disease? Show your answers with a Punnet square.
Use the following parents to create a Punnet Square and answer the question. Cross a heterozygous father with a homozygous recessive mother. (you can use the letter A for your parental genotypes) What percent of the offspring will be homozygous recessive?
Assume that attached earlobes is an autosomal recessive trait with 47% penetrance. If one parent is heterozygous (Aa) and the other homozygous recessive (aa) for the attached earlobe gene, what is the probability that their first child will have attached earlobes? Show your calculation, with labels. a. 50%b. 11.75% c. 25%d. 23.5% e. 75%
The following pedigree shows the inheritance of Huntington’s disease, a fatal genetic disorder that causes neurodegeneration. Since signs and symptoms usually do not appear until adulthood, many who are carriers may not realize their risk of passing on the disease-causing allele. The following pedigree represents a family in which some people are affected by Huntington’s disease. Using just the information on this pedigree, is Huntington’s disease caused by a dominant allele or recessive alleles? What are the genotypes of the grandparents (I-1 and I-2)? What are the genotypes of the parents (II-6 and II-7)? If the parents above have another child, what is the chance that they will be affected by the Hungtington’s disease allele? What are the genotypes of the unaffected children (III-8, 9, 10)? What is the chance that the unaffected children above will pass on a Huntington’s disease allele to their children? What is the genotype of the affected child (III-11)? What is the chance…
Use the following parents to create a Punnet Square and answer the question. Cross a heterozygous father with a heterozygous mother. (You can use the legend A = normal pigmentation and a = albinism) What will be the phenotypic ratio of the children?
The pedigree below represents the inheritance of a rare genetic disorder (members joining the pedigree are not carriers). Consider the following pedigree and answer questions (i) to (vii) below. The allele descriptors are B/b. What is the mode of inheritance in this pedigree ? Y-linked inheritance X-linked recessive inheritance X-linked dominant inheritance Autosomal recessive inheritance Autosomal dominant inheritance What is the genotype of individual III-2 ? a) XbXb b) XBXB c) XBXb d) Bb e) bb What is the genotype of individual IV-3 ? a) XbXb b) XBXB c) XBXb d) Bb e) bb Individual IV-4 and an unaffected woman is planning a family. What is the probability that their first child will be phenotypically normal ? a) chance that the first child will be phenotypically normal. b) chance that the first child will be phenotypically normal. c) chance that the first female child will be phenotypically normal; all male children will be phenotypically normal. d) chance that the…
A young couple went to see a genetic counselor because each had a sibling with cystic fibrosis. (Cysticfibrosis is a recessive disease, and neither member ofthe couple nor any of their four parents is affected.)a. What is the probability that the female of thiscouple is a carrier?b. What are the chances that their child will havecystic fibrosis?c. What is the probability that their child will be acarrier of the cystic fibrosis disease allele?