Some groups of expert farmers grew potatoes, tobacco, tomatoes, and other plants what is the simple subject a: some group of expert farmers b: groups c: potatoes, tobacco, tomatoes, and other plants d: plants

Plants would be correct...

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."

uh two lol