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genetic drift
遗传漂变(
genetic
drift
) 名词解释
答:
【答案】:指G下在群体内由随机取样而产生的波动,即GF在小群体中发生随机改变的现象。
偏移英文
答:
可以得出等值线的偏移位置。2、Ray a is reflected and transmitted without deviation.光线被反射,且传播时无偏移。3、The distribution was skewed toward the lower energy values.这种正整分布向较低的能量偏移。4、This is one form of a process that biologists call
genetic
drift
.这是生物学家...
生物的微进化
答:
微进化 又称种内进化(microevolution),是由突变,遗传漂变,基因流和自然选择导致的等位基因频率的改变 Changes in allelefrequencies brought about by mutation ,
genetic
drift
,nonradonmmating, gene flow,and natural selection.)Change in gene frequency of a population over time. 又叫做"evolution"...
positive selection是什么意思
答:
positive selection[英][ˈpɔzitiv siˈlekʃən][美][ˈpɑzɪtɪv sɪˈlɛkʃən][医]正向选择;以上结果来自金山词霸 例句:1.Much change is due to random
genetic
drift
rather than positive selection.许多生物...
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