Scientists have argued whether or not the often-studied mitochondrial DNA molecule is clonally inherited. It is with assuming clonal inheritance this type of DNA has been used to track the origin of modern human as well as to draw pictures of genetic relationships among other animals and plants. The conflict has now been solved by two evolutionary geneticists from Uppsala University in Sweden, who present the new evidence in this week’s issue of Nature. Their results show that mitochondrial DNA is stably transmitted from mothers to their offspring only. This clonal inheritance indeed makes mitochondrial DNA suitable for use in evolutionary studies.
The above story is based on materials provided by Uppsala University. Note: Materials may be edited for content and length.
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