What are the molecules that make up the majority of the membrane

Phospholipid Bilayer. The simple or basic building blocks of a cell membrane are phospholipids. Phospholipids contain a hydrophobic end, which is insoluble in water, made up of two fatty acid chains of nonpolar molecules such as carbons and hydrogens. The other end is hydrophilic, which is soluble in water, and contains polar phosphate molecules.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

the answer is c.mitochondria. glad to .