tag:blogger.com,1999:blog-227780861638767023.post5844888373871778953..comments2024-01-27T00:27:45.851+00:00Comments on race/history/evolution notes: Heritability of facial attractiveness and masculinity-femininityn/ahttp://www.blogger.com/profile/02378473351485233448noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-227780861638767023.post-78728900625257870442014-04-17T17:13:10.117+01:002014-04-17T17:13:10.117+01:00article related to this topic:
http://www.feminin...article related to this topic:<br /><br />http://www.femininebeauty.info/sexually-antagonistic-selection<br /><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-227780861638767023.post-9484964575567791112014-02-27T20:35:24.823+00:002014-02-27T20:35:24.823+00:00As a hypothetical case: which movie star would you...<i>As a hypothetical case: which movie star would you bet has a conventionally better looking sister: rugged Russell Crowe or delicate Johnny Depp?</i><br /><br />For a real case, see Bruce Willis's daughter Rumer Willis. She inherited his chin and jaw:<br /><br />https://en.wikipedia.org/wiki/File:Rumer_Willis.jpgAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-227780861638767023.post-70030553425673954942014-02-25T19:28:16.522+00:002014-02-25T19:28:16.522+00:00Steve,
Yes, the researchers behind the paper abov...Steve,<br /><br />Yes, the researchers behind the paper above have also found "facially masculine men tend to have facially masculine, less-attractive sisters." (<a href="http://pss.sagepub.com/content/25/2/476" rel="nofollow">Genetic Factors That Increase Male Facial Masculinity Decrease Facial Attractiveness of Female Relatives</a>)<br /><br />There's also this: <a href="http://www.sciencedirect.com/science/article/pii/S1090513811000274" rel="nofollow">Evidence of intralocus sexual conflict: physically and hormonally masculine individuals have more attractive brothers relative to sisters</a><br /><br />And I think I've seen at least one other paper reporting similar results.<br /><br />But according to the paper linked in the original post, there are also other genetic factors that influence the attractiveness of opposite sex relatives in the same direction (probably related to genetic load):<br /><br /><i>On the other hand, the positive genetic correlation<br />between male and female attractiveness and the negative<br />genetic correlation between male facial attractiveness and<br />female facial masculinity–femininity suggest that alleles<br />influencing variation in these traits are consistently bene-<br />ficial—or maladaptive—regardless of sex. One mechanism<br />for maintaining genetic variation in the face of such<br />directional selection is mutation-selection balance:<br />although some of the alleles affecting these traits are<br />conducive to both sexes’ reproductive success, a constant<br />influx of deleterious mutations is introduced each genera-<br />tion that maintains a degree of maladaptive variation in the<br />population (Houle 1992).</i>n/ahttp://racehist.blogspot.comnoreply@blogger.comtag:blogger.com,1999:blog-227780861638767023.post-37925608848750506832014-02-25T04:17:16.505+00:002014-02-25T04:17:16.505+00:00I'm sort of cousins with a family of four sibl...I'm sort of cousins with a family of four siblings: the brothers are ruggedly handsome guys, but the sisters are too rugged to be terribly pretty. Is that pattern common among siblings? <br /><br />As a hypothetical case: which movie star would you bet has a conventionally better looking sister: rugged Russell Crowe or delicate Johnny Depp?<br /><br />Have there been any studies of this?<br />Steve Sailerhttps://www.blogger.com/profile/11920109042402850214noreply@blogger.com