Question

When all plant structures have a ______ set of chromosomes, it is called the gametophyte stage.?

Answer 1

When all plant structures have a haploid set of chromosomes, it is called the gametophyte stage.

Step-by-step explanation:

Answer 2

I think there should be an options to choose. But I think I know what you mean. My answer is: When all plant structures have a haploid set of chromosomes, it is called the gametophyte stage.