A is the coding and
is the trait.

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.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves