Biology for IGCSE & O level - Inheritance (Section 4 - No. 15)

What would be the probable outcome of a cross involving unlinked genes that are independently assorting?

The genes will always be inherited together.

The genes will show a 3:1 phenotypic ratio.

The genes will show a 9:3:3:1 phenotypic ratio

There will be no phenotypic variation.

Unlinked genes that are independently assorting will show a 9:3:3:1 phenotypic ratio.