Practice questions in Mendelian genetics

We know that the most common form of color blindness results from an X-linked recessive gene. A couple with normal color vision has a daughter with normal vision and a son who is color-blind. ... Cross Flower phenotypes Pod phenotypes Combined PP ss x pp SS 100% purple 100% spiny 100% purple spiny Pp SS x pp ss. ½ purple: ½ white 100% spiny ... ................
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