单词：Ghoshpāra
单词：Ghoshpāra 相关文章
Marcus Pembrey is one of a select band of scientists, a band of scientists who are daring to challenge an orthodoxy . They believe the lives of our parents, grandparents, and even our great grandparen
基因外遗传现象
No body had had seen this kind of thing before, so this was the first time and all the people looking at the gel and saying
基因外遗传现象
After we had seen how relatively easy it was to change the switches in mouse embryos, we thought that perhaps the same could be true of human embryos. In IVF, you also have the embryo for a brief peri
基因外遗传现象
If inheritance was not just about DNA, if these gene switches were so important, just what could turn them on or off? Stephanie and Emend Mullins have two children, Karen and Charlotte. When we were t
基因外遗传现象
It showed that there was clearly more to inheritance than simply the coded sequence of DNA. We then realized that we were dealing with what is now known as genomic imprinting. What genomic imprinting
基因外遗传现象
...lead to the end of diseases like cancer... Alzheimer's , Parkinson's , diabetes. The list is endless. We were thinking of genes in a very mechanical way. We were thinking of them just in terms of t
基因外遗传现象
Named after Henry Angelman, the pediatrician who first described Angelman syndrome. He referred to them as happy puppet children because it described, to some extent, the features. They have a rather
基因外遗传现象
We are on the brink of uncovering a hidden world, a world that connects past and future generations in ways we never imagined possible. What this means is an environmental exposure that your grandmoth
基因外遗传现象
Olov Bygren was looking to see if poor nutrition had an effect on health when he stumbled on something curious. It appeared that a famine could affect people almost 100 years later even if they never
基因外遗传现象
The email was sent by Olov Bygren. He was studying the population records of an obscure town in northern Sweden, Overkalix. What made these records unique was their detail. They recorded births and de
基因外遗传现象
Our studies had really convinced me that it were the later experiences of the child as the child was growing up bombarded with years and years of, em, symptoms from the parents that accounted for the
基因外遗传现象
But could this effect be transmitted to their offspring? They found nearly 200 women of whom a number had actually been in the Twin Towers. About half of them developed post-traumatic stress disorder.
基因外遗传现象
They discovered that when a famine was able to trigger an effect was different for the grandmother than the grandfather. The grandmother appeared susceptible while she herself was still in the womb, w
基因外遗传现象
The impact of a famine being captured by the genes in the eggs and sperm, and a memory of this event was being carried forward to affect the grandchildren, generations later. We are changing the view
基因外遗传现象
The work of these scientists is at last throwing a spotlight onto the mysterious hidden world of epigenetics. They appear to show that the lives of our ancestors have a capacity to affect us directly.
基因外遗传现象
By Barry Newhouse Baghdad 11 March 2007 At a regional security conference in Baghdad, Iraqi leaders focused on the positive role Iraq's neighbors can play in improving security, but they also warned the country must not be used as a battleground for
2007年VOA标准英语（三月）
By Deborah Tate Capitol Hill 13 July 2006 U.S. Ambassador to Iraq, Zalmay Khalilzad, sought to emphasize the positive when he offered an assessment of the situation in Iraq before a congressional committee Thursday. But he said sectarian violence re
2006年VOA标准英语（七月）
By Mike O'Sullivan Los Angeles 12 March 2007 Los Angeles gets little respect as an artistic or cultural center from its rivals on the East Coast, such as New York or Boston, but the sprawling West Coast city is highlighting its role as a creative hu
2007年VOA标准英语（三月）
By Leslie Boctor Cairo 04 March 2007 The leaders of Saudi Arabia and Iran have agreed to work together to end Saudi King Abdulla bin Abdul Aziz, stands right, as Iranian President Mahmoud Ahmadinejad, greets Saudi officials in Riyadh, 3 March 2007 se
2007年VOA标准英语（三月）
By Nancy-Amelia Collins Jakarta 09 May 2006 The dispute over Iran's nuclear program is overshadowing the fifth summit of the Developing Eight, a forum for eight large predominately Muslim economies. T
2006年VOA标准英语（五月）