The blood sample consists of dead cells that are breaking apart into their basic molecular building blocks. What type of molecule is best suited for identifying the
specimen?
a) Lipids
b) DNA
c) Proteins
d) RNA

I think the answer is b. DNA

this protocol provides a detailed procedure for nucleoprotein extraction from cultured cells and tissues in an efficient manner.

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!