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Cold case detectives are investigating a homicide that took place 30 years ago. In reexamining the evidence, they find a tiny spot of blood on the victim's clothing that was likely left by the murderer. The DNAin the blood has partially degraded over time. What technique(s) would the blood lab technicians use in their examination of this tiny, degraded blood sample? Select all that apply. They would use a restriction enzyme and DNAligase to make recombinant DNA from this sample. They would use reverse transcriptase-polymerase chain reaction (RT-PCR) to determine the genes expressed in this DNA. O They would use PCR to amplify the DNA