Campbell Essential Biology Plus Mastering Biology with eText -- Access Card Package (6th Edition) (Simon et al., The Campbell Essential Biology Series)
6th Edition
ISBN: 9780133909708
Author: Eric J. Simon, Jean L. Dickey, Kelly A. Hogan, Jane B. Reece
Publisher: PEARSON
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Chapter 9, Problem 8SQ
Summary Introduction
To explain:
The chances of the occurrence of the Duchenne muscular dystrophy, which is a sex-linked recessive disorder in the second progeny of a couple named Carla and Rudy, if their first son has this disease.
Introduction:
The disease Duchenne muscular dystrophy is a sex-linked recessive disease, which is caused due to a cross between a male and a female named Carla and Rudy, which are carriers for the disease. It causes the weakness of the muscles of the human body. The first son of the couple is affected and the chance of the occurrence of the disease is
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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.
Jan and Michael are both carriers for the cystic fibrosis allele. If Jan and Michael have five children, what the probability that three or more of the children will have the disease?
If Scott Summers and Jean Grey have another daughter, what are the chances that she will has red eyes?
Chapter 9 Solutions
Campbell Essential Biology Plus Mastering Biology with eText -- Access Card Package (6th Edition) (Simon et al., The Campbell Essential Biology Series)
Ch. 9 - The genetic makeup of an organism is called its...Ch. 9 - Which of Mendels laws is represented by each...Ch. 9 - Edward was found to be heterozygous (Ss) for the...Ch. 9 - Whether an allele is dominant or recessive depends...Ch. 9 - Prob. 5SQCh. 9 - Prob. 6SQCh. 9 - Prob. 7SQCh. 9 - Prob. 8SQCh. 9 - Adult height in people is at least partially...Ch. 9 - A purebred brown mouse is repeatedly mated with a...
Ch. 9 - How could you determine the genotype of one of the...Ch. 9 - Tim and Jan have freckles (a dominant trait), but...Ch. 9 - Incomplete dominance is seen in the inheritance of...Ch. 9 - Why was Henry VIII wrong to blame his wives for...Ch. 9 - Both parents of a boy arc phenotypically normal,...Ch. 9 - Heather was surprised to discover that she...Ch. 9 - Prob. 17SQCh. 9 - In 1981, a stray cat with unusual curled-back ears...Ch. 9 - Prob. 19PSCh. 9 - There are now nearly 200 recognized breeds of dog,...Ch. 9 - Gregor Mendel never saw a gene, yet he concluded...Ch. 9 - Prob. 22BS
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- If diseases such as cardiovascular disease (hypertension and atherosclerosis) are familial, is this an indication that there is a genetic contribution to these traits? What would you do to confirm that genetics is involved in this condition?arrow_forwardDoes the phenotype indicated by the red circles and squares in this pedigree show an inheritance pattern that is autosomal dominant, autosomal recessive, or X-linked?arrow_forwardAssume that the ratio of females to males is 1:1. A couple already has two daughters and no sons. If they plan to have a total of six children, what is the probability that they will have four more girls? (a) (b) (c) 116 (d) 132 (e) 164arrow_forward
- Jan and Michael are both carriers for the cystic fibrosis allele. If Jan and Michael have three children with the disease and then Jan becomes pregant with fratnernal twins, what is the probability that both twins will also have the disease?arrow_forwardCystic fibrosis is a genetic disorder that results in the build-up of thick mucus in the lungs and pancreas causing serious respiratory and digestive problems. It is inherited as an autosomal recessive disease. If two individuals heterozygous for cystic fibrosis marry, what is the probability of them having three children consecutively with this disorder? Using punnett square, show ALL work done to achieve your answer.arrow_forwardA couple seeks advice from a genetic counselor because they know that they are both carriers for cystic fibrosis (which is autosomal recessive), and the woman is a carrier for Duchenne muscular dystrophy (which is sex-linked recessive). For each of their future sons and daughters (calculate separately), what is the probability that they will be affected for: Cystic fibrosis Duchenne muscular dystrophyarrow_forward
- Parents Genotype : Bb/bb – Eye Color - (brown eyes dominant , blue eyes recessive) Dd- Dimples ( dominant) Cc/cc- Cleft chin (Dominant) Sarah BbDdcc James bbDdCc If they plan to have 4 children, what is the probability of having: all boys with cleft chin?arrow_forwardWhat are the odds of the person with sickle cell anemia disorder passing it on to their children if the other person is homozygous dominant, heterozygous, or homozygous recessive for the trait?arrow_forwardwhat is the probability that a couple (both heterozygous for the same recessive mutation) will have two children with the disease if the couple plans to have four children in total?arrow_forward
- If a male is homozygous dominant and a female is heterozygous, what is the probability that their child will be homozygous recessive?arrow_forwardIf couple #1 had another son, what is the probability that the son is colorblind?arrow_forwardBryan has albinism, an autosomal recessive trait, which means he is homozygous recessive for albinism and his genotype is aa. Bryan's parents, Frank and Amy, do not have albinism however they must both be heterozygous. Bryan's sister, Allice, is a carrier for albinism. If Allice has offspring with Jim, who has no family history of albinism, what are the chances that their offspring are carriers for albinism? What are the chances that they children will get albinism? Use Punnett squares.arrow_forward
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