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Which type of DNA does NOT obey the rules of Mendelian inheritance?

Question and options

Which type of DNA does NOT obey the rules of Mendelian inheritance?
  1. mtDNA
  2. Nuclear DNA
  3. Both mtDNA and Nuclear DNA
  4. Neither mtDNA nor nuclear DNA

Answer and explanation

Correct answer: A - mtDNA
mtDNA is inherited only from the mother (no recombination), so it does not follow Mendelian inheritance; nuclear DNA does.

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