Because they have more underlying factors such as (straight) brown hair or (curly) blonde hair from different parents. A punnet square would be too big and confusing if we considered all the factors that came from the parents.
Answer:
Explanation
Given that 36% are recessive in traits
100-36 = 64% for dominant traits considering a whole population to be 100%
P=dominant allele
q= recessive allele
P2= dominant genotype
q2= recessive genotype
according to hardyweinberg principle, p+q=1
64/100= 0.64 frequency for dominant traits or genotype, therefore
p2=0.64
then
P=√0.64
p= 0.8
Therefore, dominant allele frequency (p) for the population is 0.8
There is a place in the lid where the fluid rushes to when you tip it, leaving the air bubbles in the cylinder of the bottle. In some companies it's a chemical inside the fluid that can evaporate over time and looses it's " magic" effect.
B is the answer for your question
Mutations (changes) to the DNA within the cells.