Mitochondrial Inheritance in Babies
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Questions and Answers

Which of the following statements is true about mitochondrial DNA in babies?

  • The mother's oocyte gets a random set of mitochondria. (correct)
  • Sperm cells have mitochondria which can cause mitochondrial diseases in infants.
  • Mitochondrial DNA in babies is proofread to correct mutations.
  • Babies inherit mitochondria from both parents.

    • Why is the father unlikely to cause or spread mitochondrial diseases to the infant?

  • Sperm cells contain only healthy mitochondria.
  • Sperm cells contain fewer mitochondria than oocytes.
  • Sperm cells do not contain mitochondria. (correct)
  • Sperm cells have a better proofreading mechanism for mitochondrial DNA.

    • What is the consequence of a mother having higher mutagenicity in her mitochondria?

  • The baby will not inherit any mitochondria.
  • The baby is less likely to develop mitochondrial diseases.
  • The baby will inherit more mitochondria from the father.
  • The baby may develop severe conditions. (correct)

    • How does mitochondrial DNA differ from nuclear DNA in terms of proofreading?

    <p>Nuclear DNA has better proofreading mechanisms than mitochondrial DNA.</p> Signup and view all the answers

    Which parent is responsible for passing on mitochondrial DNA to their offspring?

    <p>The mother passes on mitochondrial DNA to their offspring.</p> Signup and view all the answers

    What is the risk of inheriting defective mitochondria for a baby?

    <p>The risk is higher if the mother has higher mutagenicity in her mitochondria.</p> Signup and view all the answers

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