individuals are affected when they are homozygous recessive. carriers have not been labeled. referring to the pedigree below, which chromosome is the gene located

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."

if you know your abc's you should be able to get your answer or just use google