In the context of hereditary diseases, consider the following statements: 1. Passing on mitochondrial diseases from parent to child can be prevented by mitochondrial replacement therapy either before or after in vitro fertilization of egg. 2. A child inherits mitochondrial diseases entirely from mother and not from father. Which of the statements given above is/are correct?
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A hard Science & Technology multiple-choice question from UPSC Prelims 2021. Attempt it above, then check the correct answer and detailed explanation below.
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Correct answer: C. Both 1 and 2
Both are correct — mitochondrial replacement therapy can prevent transmission of mitochondrial diseases, and mitochondria (and their DNA) are inherited only from the mother.
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