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Leslie_quiz1a key

Leslie_quiz1a 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? X ! linked recessive B. (3 pt) What is the probability Ethan’s child will have gigglegopia? 0 C. (3 pt) What is the probability Rose’s child will have gigglegopia? ¼ (also will accept if male ½, if female, 0) (if you put autosomal recessive for A, then I accepted 0)
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2. (8 pts) Old McDonald has decided to enter the field of plant genetics. He crosseed 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
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