4,5,6,7
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diagram Dod Pictured above is a pedigree depicting a family with a history of cystic fibrosis, an autosomal recessive condition. At this locus, the Fallele is completely dominant to the fallele 4&5 Question 4 (1 point) What is the genotype of individual 11-3? Question 5 (1 point) If Il-1 and I have another child, what is the probability that that child will have cystic fibrosis? 0.75 0.25 OS 0.33 #6 Question 6 (1 point) How would your answer to the question above change it the disease was 60% penetrant! Give the probability as a decimal percent to two decimal places. 0.33 7 Question / (3 points) 10 ОШОП Describe evidence from the above pedigree (this is the same pedigree, copied here so you don’t have to scroll) that demonstrates that this is NOT an X-linked recessive trait. Choose a family (parents and their offspring) from the pedigree above and: • give the numbers of the parents of the family you chose le.g. I-1X • describe what is shown in the pedigree, and state what you would see in this family if this trait was X-linked recessive. To receive full credit, please make sure you are using all three of the above points in your answer.
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