Why do forensic labs analyse non-coding dna and nolye

If a robot fixed another robot is it a engineer or doctor?

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

I’m stuck on this question cuz i’m stupid sksksksk