Saturday, August 05, 2017

Purpose of sex?

WHAT IF SEX IS JUST A GARBAGE DUMP FOR GENETIC MUTATIONS?
More about Alexey Kondrashov. From the Wikipedia article on  "On August 22, 2012, Kondrashov wrote an article in Nature, describing a link between older fathers and a rise in disorders such as autism. The paper attracted a lot of public attention and Kondrashov was interviewed by The New York TimesThe Los Angeles TimesThe Economist and several television networks.[13] The research investigated the number of spontaneous mutations in humans. It showed that a 40-year-old father transmits nearly two and a half times more mutations to his offspring than a 20-year-old father. As the example, a 20-year-old father can transmit nearly 25 random mutations to the offspring. The number of transmitted mutations is rising on two mutations for every more year. So, a 40-year-old father can transmit nearly 65 mutations to the offspring. The exact reason for it is not well understood, but the collecting of sperm of young men and freezing it for the future can be a clever choice.[14] The brain is usually more effected by these mutations, due the fact that more genes are expressed in the brain than in any other organ.[15]"

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