Muscle cells work hard and therfore require a lot of energy thus they contain more mitochondria to produce a high level of ATP.
Answer:
p = dominant allele
q = recessive allele
p2 = frequency of homozygous dominant gene
q2 = frequency of homozygous recessive gene
2pq = frequency of the heterozygous genotype
It's a form of diffusion.. it would be hypertonic solution moving into hypotonic cell to balance concentrations