60秒科学:运动基因会遗传
An experiment tracking mice for 43 generations finds that progeny 1 of those that initially 2 were more active are spending three times as much time on the training wheel as the progeny of the initially more sedentary mice. Christopher Intagliata reports
一项追踪研究43代老鼠的试验表明，比起那些原本相对安静的老鼠的后代，那些原本相对活跃的老鼠的后代跑轮子的所花时间要比它们长两倍。
Always finding excuses to skip the gym? Congrats—you might be able to blame your genes 3. Because the mere 4 desire to exercise may be inherited, at least in mice. So says a study in the journal Proceedings 5 of the Royal Society B.
The experiment started back in 1993 with 224 mice, divided into eight groups. In four of the groups, the researchers mated the males and females that logged the most distance on their exercise wheels. For the other four groups, they just randomly 6 bred the mice.
Forty-three generations later, the mice descended 7 from long distance runners are voluntarily running seven miles a day—three times as far as their lazy counterparts. And they cover those miles in different ways—some are marathoners, while others, especially females, run faster for fewer hours.
The running mice do have physical advantages, like better endurance and less body fat. But it's not just fitness. Previous studies suggest something's changing in the mice's brains too, turning them into exercise addicts 8. And since mice and humans have similar genes, our itch to hit the track might also depend on how often mom and dad liked to throw on their running shoes
- His numerous progeny are scattered all over the country.他为数众多的后代散布在全国各地。
- He was surrounded by his numerous progeny.众多的子孙簇拥着他。
- The ban was initially opposed by the US.这一禁令首先遭到美国的反对。
- Feathers initially developed from insect scales.羽毛最初由昆虫的翅瓣演化而来。
- You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因，所以能够活得很长。 来自《简明英汉词典》
- Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪
- That is a mere repetition of what you said before.那不过是重复了你以前讲的话。
- It's a mere waste of time waiting any longer.再等下去纯粹是浪费时间。
- He was released on bail pending committal proceedings. 他交保获释正在候审。
- to initiate legal proceedings against sb 对某人提起诉讼
- Within the hot gas chamber, molecules are moving randomly in all directions. 在灼热的气体燃烧室内，分子在各个方向上作无规运动。 来自辞典例句
- Transformed cells are loosely attached, rounded and randomly oriented. 转化细胞则不大贴壁、圆缩并呈杂乱分布。 来自辞典例句
- A mood of melancholy descended on us. 一种悲伤的情绪袭上我们的心头。
- The path descended the hill in a series of zigzags. 小路呈连续的之字形顺着山坡蜿蜒而下。