Patrick is observing a stained slide of muscle tissue under a microscope. he observes alternating dark and light bands inside the muscles. which is the probable source of these muscles?

a.) blood vessels
b.) skeletal muscles
c.) smooth muscles

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."

. ph changes the ability of them he enzyme to dissolve in water.