Y chromosomes

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Male Smokers May Lose Y Chromosomes

Research may explain men's higher cancer rates

(Newser) - Even if general appeals to one's health aren't enough to convince people to quit smoking , perhaps this new research out of Sweden will give men some pause. An Uppsala University study published yesterday in Science says that male smokers are, on average, three times more likely to lose... More »

Sorry, Men, We Barely Need Y Chromosomes

Just two genes from it are necessary to reproduce: study

(Newser) - Who needs a Y chromosome? Scientists have found that "male" mice without the sex-defining chromosome can reproduce—as long as they've got two key genes from it. A team in Hawaii worked with mice lacking full Y chromosomes; instead, they had two genes, called Sry and Eif2s3y, inserted... More »

Men Not Going Extinct After All

Y chromosome is steadier than science used to think

(Newser) - Relax, guys. It's no longer certain at all that you'll be extinct in 100,000 years, as one genetics professor predicted. Another scientist had decided that the all-important (to men) Y chromosome was losing genes at a rate that would make it non-existent in some 5 million years,... More »

Why Do More Men Get Heart Disease? Blame Dad

Some inherit a male Y chromosome with a higher risk

(Newser) - Men represent about two-thirds of heart disease sufferers, and a new study offers a possible hint as to why—men with a certain genetic ancestry were 50% more likely to be afflicted. The study analyzed 3,233 white UK men and examined their male Y chromosomes, which are passed down... More »

Judging Gender Trickier Than You Think

(Newser) - After her big win yesterday in a world track meet, South Africa's Caster Semenya has to undergo a gender test to prove that she is, in fact, a woman. This is way more complicated than it sounds, writes Melonyce McAfee in a Slate Explainer column updated from a similar case... More »

DNA Study: Ancient Phoenicians Still With Us

Phoenician blood in North Africa, MidEast

(Newser) - The Phoenicians may have disappeared as a distinct society a few thousand years ago, but it turns out their imprint remains very much alive today. Genetic researchers have discovered the DNA of the seafaring civilization in the blood of men—as many as 1 in 17— who live today in... More »

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