Question Detail
Question
Mitochondrial DNA: a. is a linear molecule b. is inherited exclusively from the mother c. does not exist d. is inherited exclusively from the father
Correct Answer
Option B is the correct answer.
Detailed Explanation
Mitochondrial DNA (mtDNA) is a small, circular molecule, similar to bacterial DNA. It is present and exists. Its key feature in humans and most animals is its maternal inheritance pattern – it is passed down from mother to offspring of both sexes.
Hint
Like a family heirloom from your mother's side, this DNA is passed down through the maternal line.