Epigenetic changes are part of normal development.

遗传变化是正常发育的一部分。

And this silencing of the maternal copies is an epigenetic process.

这种母源基因的沉默是一种观遗传学过程。

What all these epigenetic markers are doing remains obscure.

这些观遗传学标志物到底都做了什么目前仍然不清楚。

Even social experiences can cause epigenetic changes.

甚至社交经验也能造成遗传变化。

Epigenetics is the study of how your environment can chemically modify your genes.

遗传学是一门研究环境如何通过化学的方式改变基因的学科。

These what-are-called epigenetic changes signal to the muscles to, well, tone up.

这些所谓的现遗传变化信号会使肌肉更强壮。

Most epigenetic marks are erased when egg and sperm cells are formed.

当卵子和精子胞形成时， 大多数遗传的标记会被去除。

But even though epigenetic changes are sticky, they're not necessarily permanent.

但是即使观基因变异是令人不满的，它们不是永久的。

Over time, through this epigenetic reprogramming, some cells develop into heart cells, and others into liver cells.

一段时间后，通过观遗传学的重新运作，一些胞成长为心胞，其他的成为胞。

Now, 15 years of collaboration with neuroscience and epigenetics said yes, our brains change when you train in altruism.

神经科学和观遗传学 长达15年的合作也明，改变可以发生，当你接受利他精神的训练时， 你的大脑会发生改变。

So epigenetic silencing of a gene means turning it off while keeping the DNA sequence itself the same.

基因的观沉默是指，在DNA核苷酸序列不变的情况下，抑制基因的达。

The epigenetic changes caused by one single mother rat were passed down to many generations of rats after her.

一个鼠妈妈导致的观遗传变异会被传递给她后面的好几代老鼠。

Scientists often use genetics and epigenetics to identify genes that might be linked to developing cute features and babies.

科学家经常使用遗传学和观遗传学来识别可能与可爱特征和婴儿发育有关的基因。

Those who believe in progress will, however, be pleased to know that epigenetics is not necessarily destiny.

但是，相信事物是发展变化的人们会很高兴，因为现遗传学并不是上天注定，难以改变的。

Working out which epigenetic changes wrought by exercise are important, and which incidental, will take time.

找出哪些基因的后天改变是由运动造成的是至关重要的，以及哪些是偶发的，这些都需要时间。

Most of epigenetic research has really focused on stress, anxiety, depression -- kind of a downer, kind of bad things.

大多数的观遗传学研究都集中在压力，焦虑，抑郁上—某种负面情绪，某种不好的事情。

Environmentally-induced epigenetic changes are part of the reason why genetically identical twins can grow up to have very different lives.

环境诱导的观基因变异是其中一个原因为什么基因相同的双胞胎在长大以后拥有不同的人生。

These vastly different fields share a common connection -- epigenetics.

这些截然不同的领域有一个共同的联系——观遗传学。

One of the hallmarks of ageing  is epigenetic change.

戴维：衰老的标志之一是观遗传变化。

Boosters claim that epigenetic rejuvenation could halt or reverse it.

支持者声称观遗传复兴可以阻止或逆转这种情况。