国际乒联近日发了篇“马后炮”文章拍马屁:庆祝马龙(有史以来最伟大的)、樊振东(王储)、陈梦(书写奥运史)无与伦比的遗产。流水落花春去也,世上没有后悔药。樊振东、陈梦、马龙退出世界排名,WTT 和ITTF现在再怎么说三人的好话,都晚了。近日,国际乒联专稿褒扬三巨星:《Celebrating the Unparalleled Legacy of ...
孤雄小鼠的研究,为哺乳动物印记基因的形成及其在单性生殖障碍中的作用,提供了更合理的解释。修复单个印记基因异常就能成功产生孤雌小鼠,但孤雄小鼠实验表明,印记基因的演化目标并非直接阻止单性生殖。实际上,印记基因和单性生殖的关系更多是间接效应:当体内有两套父本 DNA 时,胚胎往往过度生长,而这种过度生长在生物学上不可持续,最终影响存活。虽然这些异常的单独效应不致命,但修复它们却能产生可存活的个体。
The Hong Kong International Horse Show will run from February 14 to 16 at AsiaWorld-Expo. This equestrian event is held in Hong Kong for the first time, with a prize money of up to HK$6.5 million.
The annual Hong Kong Marathon is back for its 27th year and boasts the highest participation rate in Hong Kong, drawing thousands of local runners and elite athletes from around the world. The race ...