Epigenetic modifications plays an important role in gene expression and the early development of cloned embryo.

表观遗传修饰在基因表达和克隆胚的早期发育方面有重要作用。

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Plants use these epigenetic silencing mechanisms extensively to control development and parent-of-origin imprinted gene expression.

植物广泛地使用这些表观沉默机制来控制发育及亲本来源的印记基因表达。

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Epigenetic variation plays an important role in plant growth and development, including DNA methylation, histone modification, chromosome remodeling, and RNA interference and so on.

表观遗传变异对于植物的生长发育起着重要作用，主要包括DNA甲基化、组蛋白修饰、染色体重塑和RNA干涉等。

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That "something" could be hormone levels in utero, epigenetic factors that turn autism susceptibility genes "on" and "off" during development, or the fact that young girls have in general better social skills than boys and so need a bigger "dose" of what causes ASD to cross that threshold to being impaired.

CNN: How girls and boys differ when it comes to autism