In primary succession, what happens first? a Wind brings lichen and mosses.
b Grasses and other annual plants establish themselves.
c Soil is built.
d Small shrubs establish themselves.

what's the

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.