Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 8, Problem 17PS
Interpreting Data The graph in the right hand column shows the incidence of Down syndrome in the offspring of normal parents as the age of the mother increases. For women under the age of 30, how many infants with Down syndrome are born per 1,000 births? How many for women at age 40? At age 50? How many times more likely is a 50-year-old woman to give birth to a baby with Down syndrome than a 30-year-old woman?
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Suppose a couple brought to you their 8-year old boy with progressive muscle weakness, and difficulty in motor skills resulting to awkward manner of walking and running . The boy’s 15-year old sister and11-year old brother appear to be unaffected. They have a normal father and a normal pregnant mother. The mother had a brother who died at 26 yrs. of age with similar findings that seemed to worsen with age. The mother also has a sister with the same findings but it only manifested during her 28 th year. Her sister, who married an unaffected man, has two affected sons and a normal daughter.You suspect a diagnosis of Duchenne Muscular Dystrophy (DMD).
a. Draw the pedigree of this family. Follow protocols in making a pedigree. Provide the genotype of all individuals in the pedigree. Please provide also the gene notation.
b. What is most likely the pattern of inheritance for this condition? c. Justify your answer in letter (b).d. What is the risk (probability) that the fetus is affected?…
Suppose a couple brought to you their 8-year old boy with progressive muscle weakness, and difficulty in motor skills resulting to awkward manner of walking and running . The boy’s 15-year old sister and11-year old brother appear to be unaffected. They have a normal father and a normal pregnant mother. The mother had a brother who died at 26 yrs. of age with similar findings that seemed to worsen with age. The mother also has a sister with the same findings but it only manifested during her 28 th year. Her sister, who married an unaffected man, has two affected sons and a normal daughter.You suspect a diagnosis of Duchenne Muscular Dystrophy (DMD).
Suppose a couple brought to you their 8-year old boy with progressive muscle weakness, and difficulty in motor skills resulting to awkward manner of walking and running . The boy’s 15-year old sister and 11-year old brother appear to be unaffected. They have a normal father and a normal pregnant mother. The mother had a brother who died at 26 yrs. of age with similar findings that seemed to worsen with age. The mother also has a sister with the same findings but it only manifested during her 28th Her sister, who married an unaffected man, has two affected sons and a normal daughter. You suspect a diagnosis of Duchenne Muscular Dystrophy (DMD).
Draw the pedigree of this family. Follow protocols in making a pedigree. Provide the genotype of all individuals in the pedigree. Please provide also the gene notation.
What is the risk (probability) that the fetus is affected?
Amniocentesis has to be performed in order to determine the sex of the fetus. What is the risk that the child will be…
Chapter 8 Solutions
Campbell Essential Biology with Physiology (6th Edition)
Ch. 8 - Which of the following is not a function of...Ch. 8 - In what sense are the two daughter cells produced...Ch. 8 - Prob. 3SQCh. 8 - A biochemist measures the amount of DNA in cells...Ch. 8 - Which two phases of mitosis are essentially...Ch. 8 - Complete the following table to compare mitosis...Ch. 8 - If an intestinal cell in a dog contains 78...Ch. 8 - Prob. 8SQCh. 8 - Prob. 9SQCh. 8 - A diploid body (somatic) cell from a fruit fly...
Ch. 8 - Prob. 11SQCh. 8 - Prob. 12IMTCh. 8 - Prob. 13IMTCh. 8 - Prob. 14IMTCh. 8 - A mule is the offspring of a horse and a donkey. A...Ch. 8 - Prob. 16PSCh. 8 - Interpreting Data The graph in the right hand...Ch. 8 - As described in the Biology and Society section,...Ch. 8 - Prob. 19BSCh. 8 - Prob. 20BSCh. 8 - Prob. 21BS
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- Two brown eyed parents (Bb and BB) have a baby. What is the chance that the baby is blue eyed? 0% 50% 75% 25%arrow_forwardA) A husband and wife have four daughters. What is the probability that their fifth child will also be a girl? B) Six children are born on the same day. What is the probability that three will be boys and three will be girls? please show work. thanksarrow_forwardA man and woman have 5 children, all healthy boys. They would like a daughter. What is the likelihood or probability that their 6th child is a girl? Group of answer choices - Nearly 100% probability that the next child is a girl since have all boys - Less than 50% probability since they seem more likely to have boys - 0% probability. This will be a family of all boys - 50% probability of a girl. The previous births have no bearing on this event - More than a 50% probability that the child is a girl since have so many boysarrow_forward
- when a woman is injected with an egg fertilized in vitro, the probability of its implanting is 20 percent. If a woman is injected with five eggs simultaneously, what is the probability that she will become pregnant?arrow_forwardData:Total Births: 2,700 Low Birth Weight: 264Mothers with inter-gestational interval < 12 months: 92Mothers with low birth weight with inter-gestational interval < 12 months: 21Mothers with previous HTN: 18Mothers with low birth weight with previous HT: 15 A) Global or absolute risk of low birth weight.B) Relative risk for the factor "inter-gestational interval < 12 months". According to the results obtained, give your opinion as to whether there is an association or not and express it accordingly.C) Relative risk for the factor "mothers with previous HTN". According to the results obtained, give your opinion as to whether or not there is an association and express it accordingly.D) In the case of the factors in which you consider, according to the results obtained, that there is an association, calculate the Attributable Risk (AR) and the Etiological Risk Fraction (ERF), expressing in both cases their significance.arrow_forwardIs birth rate is density dependent or density independent?arrow_forward
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