Diagram that shows the force inside plant cells that allow plants stems and leaves to stay rigid and up right

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.