sex

Gene Expression

Tag archives for sex

It has been known for years that interracial marriages have higher than expected divorce rates. But I did not know that the rates varied quite a bit contingent on the combination of race & sex. Gori Girl* has a post up, Interracial Divorce in the U.S. – Statistics and How Much They Matter: – Marriages…

The downside of beauty

Well, I don’t quite know about that, but that’s the sort of take-away from a new paper in PLoS Biology which looks at the downsides of female attractiveness. A Cost of Sexual Attractiveness to High-Fitness Females: Adaptive mate choice by females is an important component of sexual selection in many species. The evolutionary consequences of…

If you have more than a marginal interest in evolutionary biology you will no doubt have stumbled upon the conundrum of sex & sexes. Matt Ridley’s most prominent work, The Red Queen: Sex and the Evolution of Human Nature, covered both the theoretical framework and applied implications of the subject. Ridley leaned heavily upon William…

Does the pill matter?

Eric Michael Johnson has a post up, Does Taking Birth Control Alter Women’s Sexual Choices?, where he surveys a new paper,Does the contraceptive pill alter mate choice in humans?. Eric notes: The concern of the researchers is that a woman who gets involved with a guy while on the pill might find that she’s no…

Gene wars across the generations

Nearly 50 years ago W. D. Hamilton published two papers, The genetical evolution of social behaviour – I & The genetical evolution of social behaviour – II, which helped revolutionize our conception of how social and genetic process might work in concert. It opened up a field of research which was highlighted in Richard Dawkins’…

Love 2-dimensional style in Japan

Love in 2-D: Nisan didn’t mean to fall in love with Nemutan. Their first encounter — at a comic-book convention that Nisan’s gaming friends dragged him to in Tokyo — was serendipitous. Nisan was wandering aimlessly around the crowded exhibition hall when he suddenly found himself staring into Nemutan’s bright blue eyes. In the beginning,…

MHC & mating

Dienekes points me to new research on MHC and mating: The scientists studied MHC data from 90 married couples, and compared them with 152 randomly-generated control couples. They counted the number of MHC dissimilarities among those who were real couples, and compared them with those in the randomly-generated ‘virtual couples’. “If MHC genes did not…