Question

4. Poinsettias can have red, pink or white bracts. In one investigation of the hereditary mechanism controlling colour 182 progeny of a certain parental cross were recorded by colour.

Colour ------Number of Plants

Red ----------108

Pink----------- 34

White ----------40

a) What kind of data are these?

b) Make 2 kinds of appropriate summary figures.

c) Comment on what the results reveal about the hereditary mechanism in operation.

Answer 1