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Leslie_quiz1b key

Leslie_quiz1b key -...

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1. (10 pts) Gigglegopia is a disorder that causes fits of uncontrollable laughter. It is known to be controlled by a single locus. The pedigree below shows the inheritance of gigglegopia in a family. Assume the presence of the mutation that causes this disease is very rare in the population. A diamond signifies a child of unknown sex. A. (4 pt) Based on the Pedigree and the information supplied above, what is the most likely method of inheritance of gigglegopia? Autosomal Dominant B. (3 pt) What is the probability Ethan’s child will have gigglegopia? (1/2) C. (3 pt) What is the probability Rose’s child will have gigglegopia? 0
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2. (8 pts) Old McDonald has decided to enter the field of plant genetics. He crossed two pure breeding parental rice strains and obtains a phenotypically wild " type F1 that was heterozygous for three alleles that determine recessive phenotypes: al determines albino flowers, b determines brown awns, and fu determines fuzzy leaves. He test crossed the F1 with a tester
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