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DNA research is based on the 46 chromosomes that every human being has (with few exceptions). The gender determining chromosomes are X from the mother and either X or Y from the father. If X from the father, the child is female and if Y from the father the child is male. The Y-chromosome can be traced from father to son to son and so on. The mother has a mtDNA which is something of an energy source for the cells. All children of one mother have the same mtDNA as do all children of that mother's daughters, though not of her sons since mtDNA can't be passed by men. Since the mutation of chromosomes is very slow the study of the Y-chromosome or the mtDNA trail forms the basis of the DNA genealogy. | DNA research is based on the 46 chromosomes that every human being has (with few exceptions). The gender determining chromosomes are X from the mother and either X or Y from the father. If X from the father, the child is female and if Y from the father the child is male. The Y-chromosome can be traced from father to son to son and so on. The mother has a mtDNA which is something of an energy source for the cells. All children of one mother have the same mtDNA as do all children of that mother's daughters, though not of her sons since mtDNA can't be passed by men. Since the mutation of chromosomes is very slow the study of the Y-chromosome or the mtDNA trail forms the basis of the DNA genealogy. | ||
== DNA in the news == | |||
*[http://www.deseretnews.com/article/700150651/DNA-solves-a-Joseph-Smith-mystery.html DNA solves a Joseph Smith mystery] by Michael De Groote (''Deseret News'', 9 July 2011) | |||
*[http://www.deseretnews.com/article/700249298/DNA-shows-Joseph-Smith-was-Irish.html DNA shows Joseph Smith was Irish] by Michael De Groote (''Deseret News'', 8 August 2011) | |||
== Websites == | == Websites == | ||