Biology Practice Problems Chromosome Abnormalities and Non-Mendelian Inheritance Practice Problems Solution: Mary carries a mutation in her mitochondrial DNA t...

Solution: Mary carries a mutation in her mitochondrial DNA that causes her muscles to tire quickly. She has 3 children with John, who is a world-class marathon runner. Considering those 3 children:A. All 3 are likely to be marathoners like their father.B. 2 of the 3 are likely to be marathoners like their father.C. Any male child is likely to be a marathoner like their father.D. None of the children are likely to be marathoners like their father.

Problem

Mary carries a mutation in her mitochondrial DNA that causes her muscles to tire quickly. She has 3 children with John, who is a world-class marathon runner. Considering those 3 children:

A. All 3 are likely to be marathoners like their father.

B. 2 of the 3 are likely to be marathoners like their father.

C. Any male child is likely to be a marathoner like their father.

D. None of the children are likely to be marathoners like their father.

Solution

The inheritance of traits expressed by genes from the mitochondria will depend solely on a single parent. 

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