how can scientists use the following pedigree?

a. to confirm the principle of independent assortment
b. to confirm the one gene: one protein concept
c. to study the phenomenon of dominance
d. to prove the gene of the trait is located on the x-chromosome

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

step-by-step explanation:

wait nvm i know the correct answer now its 100%   81 square feet

~batmans wife dun dun