Ashley is a 29-year-old pregnant woman who is in the second trimester of her pregnancy. At her regular OB/GYN checkup, the doctor records the following about Ashley:
Heart rate: 92
Urinalysis: Negative for bacteria and protein in urine
Weight gain since beginning of pregnancy: 15 pounds
Blood pressure: 115/79 mm Hg
Uterine fundus height: At a midpoint between the umbilicus and the xiphoid process of the sternum
Blood glucose level: 95
5. As Ashley cares for her son, she notices some problems in his development. During one of the baby’s checkups. Ashley voices her concerns to the pediatrician. The pediatrician performs a series of assessments on the baby and orders a genetic workup. The genetic test results demonstrate that the baby has Duchenne muscular dystrophy, which is an X-linked recessive trait.
Based on your knowledge of heredity, if the baby boy has Duchenne muscular dystrophy, then what else must be true?
- a. The baby’s father is a carrier of the Duchenne muscular dystrophy allele and passed along this trait to the baby.
- b. Duchenne muscular dystrophy is an autosomal-dominant disorder.
- c. Ashley is a carrier of the Duchenne muscular dystrophy allele but does not display symptoms because she has two X chromosomes, one of which is normal.
- d. If Ashley had a baby girl (instead of a baby boy), the baby girl would be at equal risk for having Duchenne muscular dystrophy.
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Chapter 29 Solutions
ANATOMY+PHYSIOLOGY F/FD <CUSTOM>
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- Plekhg5 functions in bottle cell formation, and Shroom3 functions in neural plate closure, yet the phenotype of injecting mRNA of each into the animal pole of a fertilized egg is very similar. What is the phenotype, and why is the phenotype so similar? Is the phenotype going to be that there is a disruption of the formation of the neural tube for both of these because bottle cell formation is necessary for the neural plate to fold in forming the neural tube and Shroom3 is further needed to close the neural plate? So since both Plekhg5 and Shroom3 are used in forming the neural tube, injecting the mRNA will just lead to neural tube deformity?arrow_forwardWhat are some medical issues or health trends that may have a direct link to the idea of keeping fat out of diets?arrow_forwardwhat did charles darwin do in sciencearrow_forward
- Nutrition Through The Life CycleHealth & NutritionISBN:9781337919333Author:Brown, Judith E.Publisher:Cengage Learning,
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