Explain why individuals are not typically heterozygous with respect to mitochondrial genes

The inheritance of mitochondrial DNA (mtDNA) is matrilineal, it means that an organism inherits the mtDNA from its mother

Explanation:

The phenomenon of matrilineal inheritance has deep genetic implications since it enables the study of phylogenetic lineages of the species (or among populations within the same species) by analyzing mitochondrial inheritance.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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