Question

4. Diagram the X-linked "Cross B." In Cross B we paired wild type females with white eyed males. (5) a. Use Xw for red eye alleles and X for white eye alleles b. Include P1 genotypes and phenotypes c. Include F1 genotypes and phenotypes d. Include F2 genotypes and phenotypes e. Include the expected phenotypic ratio for males and females separately

Answer 1

Answer Given cross between wild eye female with white eyed Male let :- X - For redt allele xo - for white eye allde Hac Xot is dorisant over xw xutxwt x xwy wild type female) Cehife -eyed male) xutxut Xoxutxu xwt xw Y Xwty Xwty Genotype :- 2 CXwtyw):2 (XWty) Phenotype :- 2 (Red-eyed female): 2 Red-eyed Male) E xwt yw XX wty xat xwe x "txtxutxutxu Genotype = 1 CXwx Xwt) :ICX*XX]:1(87 :1 cywy

Phenotype : - 2 (Red-cuod female) : 1 (Red-eyed mo "I (White eyed Male) e) Expected phenotypic Ratio - for Male > 1 cred-eyed Male) 1 (white eyed Mate for female All Red eyed female C100%) Sepected thenotypic Ratio