Many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY?
a. 2
b. 4
c. 8
d. 16

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

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.