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Originally Posted by YorkieRose Thank you..these are problems passed to offspring by the female..very interesting. |
Yep. Short story of why: ok, ya know the 1 egg and 1 sperm thing to make a pup, obviously. Genes are carried in the DNA, in the nuclus of each cell. Genes are also present in and inherited in the DNA outside of the nucleus in the mitochondria...a separate set of DNA. Egg cells have mitochondria, sperm cells don't. Therefor, any disorder/trait/disease that results from the DNA in the mitochondria rather that the nucleus HAS to come from the female. (Same thing w/ humans and male-pattern baldness.)