Home            Q.001 Mitochondrial inheritance
Which one of the following is a typical feature of mitochondrial inheritance?

A. the use of the same “genetic code” for the mitochondrial gene translation as for nuclear genes
B. paternal transmission
C. heteroplasmy
D. 3-8 introns per mitochondrial gene
E. the presence of 100-150 genes in the mitochondrial genome
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Answer: C.  Heteroplasmy is a characteristic of mitochondrial DNA. See chapter 1 of Essential Medical Genetics 6th edition for further explanations.