x-linked inheritance

Where the x chromosome has a property which in females are needed two of and only one in male.

Where the X chromosome has a property which in females are needed two of and only one in male.

When you make a cross between male and female it is: ww x WY (recessive x linked, so female has it and male not. After cross: Ww Ww wY wy, 50% is male and all males are infected and 50% is females and all female are carrier.

When you cross an infected male wY with a hetero female wW, you will get: Ww ww wY WY, so 50% is female and one half is carrier and one half is infected. The 50% males that is produced, one half that is infected and one half that is not infected. Fig. 2.19

P --> F1: all female hetero : all male infected --> F2: half female hetero half infected : half male normal half infected

When P = normale female x infected male

P --> F1: all female hetero : all male normale --> F2: half female hetero half normal : half male norma half infected