The gene for a widow's peak is dominant. a child inherits genes with the genotype: ww and ww. what are the chances that he will have a widow's peak?

25% chance
50% chance
75% chance
100% chance

75%. The possibilities are WW, Ww, Ww, and ww

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.