Can someone please explain what this means? This model shows the basic process of making a protein. What are the strengths and limitations of this model?

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.

ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )