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Question 4. Consider three person embryos – which are designed for couples with a female who...

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Biology

Question 4. Consider three person embryos – which are designedfor couples with a female who carries mitochondrial mutations. Inthe process, we learned that two women can both have the samemitochondrial DNA mutation – but have radically differentphenotypes.

(A) Explain/Describe how two individuals with the samemitochondrial mutation can have different phenotypes. Consider onewoman with the mitochondrial mutation in part (A). She has nophenotypic abnormality, but is told she should consider the threeperson embryos to ensure her children don’t risk disease.

(B) Explain how it is possible her offspring are at risk if shehas no phenotypic abnormality?

(C)Describe how it is possible that a mutation could result inpaternal inheritance of mitochondrial DNA. To help, consider whyyou (probably) don’t have any mitochondria inherited from yourfather.

Answer & Explanation Solved by verified expert
3.6 Ratings (403 Votes)
A A person exhibiting same kind of mutation might not be able to express in its phenotype and this is called a variable expression of genes When two person carry the same mutation they might not show the    See Answer
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