Is this a linear (increase/decreases at a constant rate) relationship? What happens to the reaction rate as substrate concentration increases?

As the reaction rate of a substrate concentration increases it goes faster. It is a Linear Relationship.

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.

i need