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

发表于:2018-12-07 / 阅读(80) / 评论(0) 分类 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

发表于:2018-12-07 / 阅读(70) / 评论(0) 分类 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

发表于:2018-12-07 / 阅读(89) / 评论(0) 分类 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

发表于:2018-12-07 / 阅读(74) / 评论(0) 分类 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

发表于:2018-12-07 / 阅读(54) / 评论(0) 分类 基因外遗传现象

Mysterious, Magical Moldavite 神秘的魔法石-捷克陨石 by Luke Dodds This little-known and otherworldly stone is full of beauty and mystery. 这种鲜为人知的石头来自『另一个世界』,美丽且神秘。 With its strangewrinkled

发表于:2018-12-08 / 阅读(100) / 评论(0) 分类 常春藤解析英语

-It's the misinformation that we have about each other. Your grandmothers have taught you things that just absolutely not true. Uh, wait on a man to ask you to marry him. Well, see, hold on, you are in the relationship, you have every right to know w

发表于:2018-12-11 / 阅读(55) / 评论(0) 分类 访谈录2010

The sexes have two difference skill sets. You have a skill set that we don't have. So you gotta be slick about this, ladies. If you wanna get conversations from your men, you got to use your skill set, that is a way to get your man to talk. But it's

发表于:2018-12-11 / 阅读(54) / 评论(0) 分类 访谈录2010

Sherri: Thank you for explaining for what black men go through. But I think you know, when you talking about men are intimidated by women, you do go through that. And a lot of times we have willingness to stick that out with you, but it seems like ma

发表于:2018-12-11 / 阅读(71) / 评论(0) 分类 访谈录2010

-Personally, I think that, the meaning of marriage has changed. I think that marriage was one thing of we had to do because we were dependent on a man's take care of us. Then there was an expectancy thing, I graduated school, I gotta get married. And

发表于:2018-12-11 / 阅读(53) / 评论(0) 分类 访谈录2010

I think that what black me a looking forward is different kind of successful. Lot of times, you may think the successful means how much money you make, or that you have a nice job, that you CEO in this company, but black me a looking for a woman a su

发表于:2018-12-11 / 阅读(55) / 评论(0) 分类 访谈录2010

Do men get married and do they marry the next person they meet after they finally go wow, I forgot to get married Theyve been with somebody who is been wonderful for years and years and years that could be their soul mate and they just weren't ready.

发表于:2018-12-11 / 阅读(54) / 评论(0) 分类 访谈录2010

Is it intimidating to black men to have two successful, financially independent women like these? -One of the biggest, again, misconceptions, that women pass amongst themselves is that a man cant handle being in a relationship with a woman that makes

发表于:2018-12-11 / 阅读(52) / 评论(0) 分类 访谈录2010

We are going to dive into a controversial topic and a really provocative conversation, and issue, womans quests to find Mr. Right. It can be illusive for anyone, but for black women, specifically for successful black women, the challenge can be that

发表于:2018-12-11 / 阅读(55) / 评论(0) 分类 访谈录2010

Our black women standards too high. You have been told that women should just shut up and kick it. Shut up and kick it. What does that mean? Well its just like you know my man hes out there cheating but he does come home. Baby shut up and kick it. Yo

发表于:2018-12-11 / 阅读(47) / 评论(0) 分类 访谈录2010

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

发表于:2019-01-02 / 阅读(79) / 评论(0) 分类 基因外遗传现象

Dim and Mysterious, the Planet Pluto Has Scientists' Attention 黯淡神秘的冥王星引起科学家关注 Don't pace the floor waiting for the results of the visit to this far-off hunk of rock, whi

发表于:2019-01-09 / 阅读(381) / 评论(0) 分类 VOA2005(上)--环境科学探索

Its two passengers are conducting an investigation into what they call electronic fog, a vapor that they think causes disappearances within the Triangle. Pilot Bruce Gernon needs to land the aircraft as soon as possible. The plane touches down safely

发表于:2019-01-22 / 阅读(90) / 评论(0) 分类 自然百科2010年

Some believe that massive underwater landslides or earthquakes can violently release gas from a substance called methane hydrate trapped beneath the sea bed. As its escaping bubbles rise, they lower the density of the surrounding ocean. The ship drop

发表于:2019-01-22 / 阅读(63) / 评论(0) 分类 自然百科2010年

没有人知道aviation 到底是谁,唯一能找到他的只有他在soundclick 的一个主页,那里有他所有31首歌曲,而且最近的一首歌发表自2006年。不过在那个主页上写着他是美国马里兰州人,brian是他的本名,24岁,是eminem的歌迷,在2001年注册的soundclick,然后没有任何能表明

发表于:2019-02-07 / 阅读(127) / 评论(0) 分类 音乐咖啡厅