英文书摘精选 女人所见的颜色更丰富
时间：2018-12-28 作者：英语课 分类：初学者听力文摘精选
In this Moment of Science Yael and Don discuss how women can see more color.
Yael: Not only are eight percent of men colorblind, but even compared to men who can distinguish between reds and greens, many women may live a more colorful existence. That's because about forty percent of women possess two types of so- called red cones 1, a key gene 2 involved in enabling one to see the color red.
Don: There aren't any men with two types of this gene?
Y: No. That's because it's located on the X chromosome 3.
D: I have one of those.
Y: Yes, you do, but one only, whereas women have two, a distinction that makes for a discrepancy 4 in how men and women see color. This gene has three times the number of variations of most other genes 5. Possessing a variation on this gene can inhibit 6 one's ability to distinguish red from green. But a variation of this gene coupled with a standard version of the gene theoretically may allow one to see more shades of reds and oranges than the average person.
D: And the only way to get such a combination of this gene is to get your hands on two X chromosomes 7.
Y: Which you, my dear friend, Don, are without.
D: If these women are proven to be able to see a greater range of reds and oranges, is there any advantage or disadvantage to such an ability?
Y: That's yet to be determined 8. But some scientists think that the ability to distinguish subtleties 9 in reds and oranges may have meant life or death for our hunter-gatherer ancestors. They hypothesize that since women were the primary gatherers, they needed to be able to distinguish between ripe and unripened foods, as well as between edible 10 berries and poisonous imposters.
- In the pines squirrels commonly chew off and drop entire cones. 松树上的松鼠通常咬掉和弄落整个球果。 来自辞典例句
- Many children would rather eat ice cream from cones than from dishes. 许多小孩喜欢吃蛋卷冰淇淋胜过盘装冰淇淋。 来自辞典例句
- A single gene may have many effects.单一基因可能具有很多种效应。
- The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。
- Chromosome material with exhibits of such behaviour is called heterochromatin.表现这种现象的染色体物质叫做异染色质。
- A segment of the chromosome may become lost,resulting in a deletion.染色体的一个片段可能会丢失，结果产生染色体的缺失。
- The discrepancy in their ages seemed not to matter.他们之间年龄的差异似乎没有多大关系。
- There was a discrepancy in the two reports of the accident.关于那次事故的两则报道有不一致之处。
- 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
- Don't let ego and greed inhibit clear thinking and hard work.不要让自我和贪婪妨碍清晰的思维和刻苦的工作。
- They passed a law to inhibit people from parking in the street.他们通过一项法令以阻止人们在街上停车。
- Chromosomes also determine the sex of animals. 染色体也决定动物的性别。 来自《简明英汉词典》
- Each of four chromosomes divide longitudinally. 四种染色体的每一种都沿着纵向分裂。 来自《现代汉英综合大词典》
- I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
- He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
- I think the translator missed some of the subtleties of the original. 我认为译者漏掉了原著中一些微妙之处。
- They are uneducated in the financial subtleties of credit transfer. 他们缺乏有关信用转让在金融方面微妙作用的知识。