U sure? even Yeast xxx better than non xxxx Coelho MA, Gonçalves P, Sampaio JP. Evidence for maintenance of sex determinants but not of sexual stages in red yeasts, a group of early diverged basidiomycetes. BMC Evol Biol. 2011 Aug 31;11:249 Abstract BACKGROUND: The red yeasts are an early diverged group of basidiomycetes comprising sexual and asexual species. link: //www.ncbi.nlm.nih.gov/pubmed/21880139 and Pound GE, Doncaster CP, Cox SJ. A lotka-volterra model of coexistence between a sexual population and multiple asexual clones. J Theor Biol. 2002 Aug 21;217(4):535- Abstract At carrying capacity, small advantages in competitive ability can compensate a sexual population for its two-fold disadvantage in growth capacity when facing invasion by asexual mutants. In this paper, we develop a generic analytical model to consider the ecology of a sexual population comprising equal numbers of males and females, competing for shared prey resources with multiple female-only clones. We assume that the clones arise from the sexual population and are distinguished from it only by having narrower resource niches and twice the growth capacity. For sexual populations, at density-dependent carrying capacity, intra-specific competition between clonal individuals prevents them from realizing their two-fold advantage in intrinsic growth. This prediction leads to three novel outcomes: (i) a sexual population can coexist with any number of clones, provided their combined competitive impact remains less than the impact of the clones on each other; (ii) a sexual species can immediately exclude asexual invaders if it is a fast growing and strong competitor of shared resources and also has refuge in an abundant alternative resource; (iii) the rate of accumulation of clones in a sexual population will be slowed by intra and inter-specific competition amongst the clones themselves, in addition to the competitive impact from the original sexual population. link: //www.ncbi.nlm.nih.gov/pubmed/12234759 Conclusion: 如果yeast 种群基数大,Yeast近亲结婚能淘汰Yeast有害基因,使Yeast种群更健康。
重要的指标是能量密度。考虑一下微波炉,wiki 上说 “According to the United States Food and Drug Administration's Center for Devices and Radiological Health, a U.S. Federal Standard limits the amount of microwaves that can leak from an oven throughout its lifetime to 5 milliwatts of microwave radiation per square centimeter at approximately 5 cm (2 in) from the surface of the oven”。 电磁波的辐射能量跟距离的几(2? 4?忘了)次方成正比,小孩离远一点没坏处。
【在 s9 的大作中提到】 : 家有小宝,不得不考虑这个问题。
y*n
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Why? 近亲可以存化血统。但是哪怕是绝大多数的好基因,只要有一个坏基因,基本就是非残 既死。
【在 M*****n 的大作中提到】 : dont be confused. : i don't think what Trend claims is correct.
please google Hardy-Weinberg Equilibrium the low-frequency mutations will not be completely eliminated by inbreeding. at least math and genetics say so.
【在 M*****n 的大作中提到】 : please google Hardy-Weinberg Equilibrium : the low-frequency mutations will not be completely eliminated by inbreeding. : at least math and genetics say so.