a. b. C. Pedigree of a Family with Cystic Fibrosis d. I 1 2 3 4 Note: Cystic fibrosis in this family is caused by a recessive allele that is found on chromosome 7. A genetic counsellor collected pedigree information regarding the incidence of cyctic fibrosis within this family. The row that indicates the genotypes of individuals 1-1, 1-2, and II-2 is Select one: II I-1 XAY I-1 AA I-1 XAY 1 I-1 Aa 1-2 хаха 1-2 aa 1-2 ΧΑΧΑ 2 1-2 Aa II-2 XAY 11-2 Aa II-2 xay 11-2 aa O

Retinoblastoma can be seen as a familial cancer, inherited in an autosomal recessive manner (RB-/RB-), individuals heterozygous for the RB+ and RB- alleles can develop tumor as a result of… A mitotic crossover that leads to homozygosity for RB+ in some cells and RB- in other cells A meiotic mutation in the RB+ allele that leads to homozygosity for RB+ A somatic mutation in the RB- allele that leads to homozygosity for RB+ The fact that RB- is dominant to RB+

What is the Philadelphia chromosome? How is this chromosome related to cancer? Identify how this chromosome appears physically different in a karyotype than it appears in a normal karyotype. Include references to information sources used.

2: Chart v Add-ins Media Links Comment Footer Page Numb Header Screenshot v Cystic fibrosis is a hereditary illness causing respiratory issues and recurrent lung infections. It is a recessive disorder (c). Using the details below, fill in the Punnett square to determine probability of an offspring having cystic fibrosis. Mother Father -does not -does not have have cystic cystic fibrosis fibrosis genotype Cc -genotype Cc Mother Father Probability of offspring having cystic fibrosis: ada)