symbols when applicable. If present, wite your nl For each problem, show all wor
ID: 140554 • Letter: S
Question
symbols when applicable. If present, wite your nl For each problem, show all work and define answer on the line provided; if not, place a box around your final answer. If applicable, express your answer as a fraction; reducing is not necessary. I. A man and a woman are both heterozygous for cystic fibrosis, an autosomal recessive disorder in which the body produces abnormally thick mucus, resulting in respiratory and digestive problems. The couple is planning to have three children. (2.5 pts total) What are the genotypes and phenotypes of each parent? Use well-defined symbols for the genotype. (1 pt) a. define your symbols here: Genotype Phenotype Man Woman b. What are the gametes produced by the mother? (0.5 pt) What is the probability that all three children will have the same phenotype in regard to cystic fibrosis? (0.5 pt) c. What is the probability that of the three children, two will have cystic fibrosis and one will not? (0.5 pt) d.Explanation / Answer
B. gametes produced by mother if both parents are heterozygous F and f
C. the probability that all three children will have cystic fibrosis is if both the parents are carriers they both have one normal copy which they can pass to their children if they passed both the affected copies then he or she will be affected having CFTR gene
D. the chance or probability that of the three children, two will have CF and one will not as it mentioned that the parents are heterozygous CF so the chances will be 25% which is one in four
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