Other Free Encyclopedias » Medicine Encyclopedia » Genetics in Medicine - Part 2

Extranuclear Inheritance - Genes In Mitochondria And Chloroplasts, Endosymbiotic Origin Of Mitochondria And Chloroplasts, Non-mendelian Inheritance Of Organelle Genes

cell hereditary nucleus laws

Less than a decade after the rediscovery of Mendel's laws describing the inheritance of genes in the nucleus, hereditary traits were discovered that obey a different set of laws. The genes involved in this non-Mendelian pattern of inheritance reside outside the nucleus, in the cytoplasm of the cell. Specifically, they were found to reside in mitochondria, chloroplasts, or intracellular symbiotic bacteria. Those genes play important roles in the cell. Mutations in extranuclear genes are responsible for some hereditary diseases in humans and other organisms, are used in plant breeding, and are used to study population genetics and evolution.

Inheritance Patterns - Phenotype And Genotype, Alleles, Dominance Relations, Molecular Meaning Of Dominance And Recessiveness, Autosomal Dominant Inheritance - Mitochondrial Inheritance [next] [back] Information Systems Manager

User Comments

The following comments are not guaranteed to be that of a trained medical professional. Please consult your physician for advice.

Your email address will be altered so spam harvesting bots can't read it easily.
Hide my email completely instead?

Cancel or