Question

how is mitochondrial dna (mtdna) typing used in forensic science? a suspects mtdna sample is matched to an unknown sample of nuclear dna that was found at a crime scene. a suspects mtdna sample is matched to an unknown sample of mtdna that was found at a crime scene. a suspects nuclear dna sample is matched to an unknown sample of nuclear dna that was found at a crime scene. a suspects nuclear dna sample is matched to an unknown sample of mtdna that was found at a crime scene.

Explanation:

Mitochondrial DNA (mtDNA) typing in forensic science involves matching a suspect's mtDNA sample to an unknown mtDNA sample found at a crime - scene. MtDNA is maternally inherited and can be useful when nuclear DNA is degraded or in short supply.

Answer:

A suspect's mtDNA sample is matched to an unknown sample of mtDNA that was found at a crime scene.