Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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The accompanying pedigree shows a very unusual inheritance pattern that actually did exist. All progeny are
shown, but the fathers in each mating have been omitted
to draw attention to the remarkable pattern.
a. Concisely state exactly what is unusual about this
pedigree.
b. Can the pattern be explained by
inheritance
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- You know that cystic fibrosis runs in your mothers family. Your fathers family is not known to have it. Is it worse to have a parent with Costco fibrosis or a sibling with cystic fibrosis? Draw a small pedigree for both options make the appropriate assumptions and calculate the chances for each, then state your conclusion.arrow_forwardMost of the feathers of erminette fowl are light colored, with an occasional black one, giving a fleckedappearance. A cross of two erminettes produced a totalof 48 progeny, consisting of 22 erminettes, 14 blacks,and 12 pure whites. What genetic basis of the erminette pattern is suggested? How would you test yourhypotheses?arrow_forwardBased upon the above pedigree, How is this trait inherited. Please give specific evidence by identifying each generation by roman numeral, each person within that generation numerically, and stating which individuals support your claim. Look CAREFULLY!arrow_forward
- Some rare human genetic disorders have an inheritance pattern similar to the one seen in the pedigree below. I. 0O,0 II. IV. a.) How would you describe this mode of inheritance? b.) How would you explain the genetic nature of this rare disorder?arrow_forwardMarfan’s syndrome is a disorder of the fibrous connective tissue, characterized by many symptoms, includinglong, thin digits; eye defects; heart disease; and long limbs. (Flo Hyman, the American volleyball star, suf-fered from Marfan’s syndrome. She died from a ruptured aorta.) a. Use the pedigree above to propose a mode of in-heritance for Marfan’s syndrome. b. What genetic phenomenon is shown by this pedigree?c. Speculate on a reason for such a phenomenon.arrow_forwardA poultry grower has 2 breeds of chicken, averaging 9 and 5 lbs. inweight. The F1 of the cross between is quite uniform, averaging 7lbs. Of the F2 progeny, 0.4% is as heavy as either parent. a. How much does each effective allele contribute to weight? b. What is the number of polygenes pairs involved in thesecrosses? c. If only those with an average weight of 6-8 lbs. are marketable, whatpercentage of the offspring will yield profit for the grower?arrow_forward
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