If g=yellow and g=green peas, and at a separate gene p=purple and p=white flowers, what proportion of your offspring will be yellow and white if you cross a ggpp with a ggpp?

1/4

Explanation:

Given the genotype of parent plants: Ggpp and ggPp. The parent plant with Ggpp genotype will form two types of gametes in 1:1 ratio= Gp and gp.

The parent plant with genotype ggPp would form two types of gametes in 1:1 ratio= gP and gp. The random fusion of these gametes from two parents would obtain progeny in the following phenotype ratio=

1/4 yellow purple: 1/4 yellow white: 1/4 green purple: 1/4 green white  

Therefore, 1/4 of the total progeny would be "yellow and white".  

the correct answer is option d.

an appositive is a noun, noun phrase or noun clause which follows another noun or noun phrase in order to describe it or name it another way. they are usually used between commas, brackets or dashes.

the example sentence with the correct use of commas is the following:

her uncle, the man over there in the red shirt, owns the hardware store in town.