The ontogeny of epiphyllous microsporangia Ginkgo indicated that the microsporophyll in Ginkgo is of phyllome origin.Possibly, the epiphyllous microsporangia is a peculiar chimera.
孢子囊银
个体发
,表明银
孢子
有
来源
质,
孢子囊银
可能是一种奇特
嵌合体。
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Alternatively, the ontogenetic hypothesis of REM sleep, which is based on the theory of how organisms develop from their earliest stages into adults, proposes that REM sleep plays an essential role in the development of the infant brain.
另外,快速眼动睡眠的个体发生假说基于生物体如何从最早阶段发育成成人的理论,提出快速眼动睡眠在婴儿大脑的发育中发挥着重要作用。
This process of adding more repeats is called repeat expansion and it happens way more in the production of sperm than of eggs, so both anticipation and new disease alleles generally happens when the father is the affected parent.
这种序列重复增加称为重复序列扩增,精子产生时发生异常的几率比卵子高,因此当父亲为受累个体时,会发生早现现象和新的疾病等位基因。
He who believes that some ancient form was transformed suddenly through an internal force or tendency into, for instance, one furnished with wings, will be almost compelled to assume, in opposition to all analogy, that many individuals varied simultaneously.
谁相信某种古老的形式是通过种内在的力量或倾向突然转变为, 例如,
个带有翅膀的人,他将几乎被迫假设, 与所有类比相反, 许多个体同时发生变化。