Mitochondrial DNA is passed almost exclusively from the mother, giving maternal inheritance patterns.
Sperm mitochondria are usually destroyed in the embryo, so mtDNA comes from the mother. Both sons and daughters inherit it but only daughters pass it on. Cells hold many mtDNA copies, so heteroplasmy (a mixture of normal and mutant) affects severity.
Mitochondrial DNA is used to trace maternal lineages in human history.
Mitochondrial DNA is passed almost exclusively from the mother, giving maternal inheritance patterns.
Mitochondrial Inheritance is one of the 54 topics in Genetics. It is rated Advanced, so it suits learners who want specialist depth. Related topics in this area include Genetic Counselling, Nondisjunction, Pedigree Analysis.
Leber hereditary optic neuropathy follows a maternal pattern.
Work through the Beginner topics in Genetics first, such as Heredity, Gene, Allele, then return to Mitochondrial Inheritance. Advanced topics assume the Intermediate vocabulary.
The closest topics to Mitochondrial Inheritance are Genetic Counselling, Nondisjunction, Pedigree Analysis, Sex-Linked Inheritance. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Mitochondrial Inheritance. To practise the whole of Genetics, use the Genetics quiz.
Mitochondrial Inheritance: Mitochondrial DNA is passed almost exclusively from the mother, giving maternal inheritance patterns. Genetic Counselling: Professional guidance that helps families understand inherited disease risk and testing options. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Genetic Counselling and explain the difference aloud. Finally, take the Genetics quiz and come back to this page for any question you miss.
Professional guidance that helps families understand inherited disease risk and testing options.
🧬 GeneticsFailure of chromosomes to separate in meiosis, producing gametes with extra or missing chromosomes.
🧬 GeneticsFamily trees that trace a trait across generations to infer dominant, recessive or sex-linked inheritance.
🧬 GeneticsGenes on the X chromosome show different patterns in males and females, as with red-green colour blindness.
🧬 Genetics