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1898
1898
最后更新： 2021-10-31
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1898 year
1898 taon
最后更新： 2022-01-13
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june 12, 1898
hunyo 12, 1898
最后更新： 2023-09-18
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(term: 1898 1901)
1901
最后更新： 2023-11-16
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if we can come up with estimates of the frequencies of the different color forms at two different times, we can use them to estimate the gene frequencies, and substitute those into our equation to get an estimate of s. a disadvantageous gene in mutation selection balance has a frequency of m/s, where m is the mutation rate and s is its selective advantage. j.b.s. haldane guessed that m = 10 6 and s= 0.1 for the melanic c gene. this would give the gene a frequency of 10 5 in 1848 when it was first seen . by 1898 the frequency of light colored genotype was 12 10% in polluted areas give it a frequency of about 0.2, and the c gene frequency of about 0.8
kung makakaisip kami ng mga pagtatantya ng mga frequency ng iba't ibang mga form ng kulay sa dalawang magkakaibang oras, maaari naming gamitin ang mga ito upang tantyahin ang mga frequency ng gen, at palitan ang mga iyon sa aming equation upang makakuha ng isang pagtatantya ng s. ang isang hindi kapani-paniwala na gene sa balanse ng pagpili ng mutation ay may dalas ng m / s, kung saan ang m ay ang mutation rate at ang s ay ang pumipili na kalamangan. nahulaan ni jbs haldane na m = 10 6 at s = 0.1 para sa melanic c gene. bibigyan nito ang gene ng dalas ng 10 5 noong 1848 nang ito ay
最后更新： 2021-03-13
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