题干

2008年诺贝尔化学奖授予了“发现和发展了水母绿色荧光蛋白“的三位科学家。将绿色荧光蛋白基因的片段与目的基因连接起来组成一个融合基因,再将该融合基因转入真核生物细胞内,表达出的蛋白质就会带有绿色荧光。绿色荧光蛋白在该研究中的主要作用是

A:追踪目的基因在细胞内的复制过程

B:追踪目的基因插入到染色体上的位置

C:追踪目的基因编码的蛋白质在细胞内的分布

D:追踪目的基因编码的蛋白质的空间结构。

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C

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    The Republic of Vanuatu is an island nation located in the South Pacific Ocean. It was one of the poorest nations in the region. Within the last five years, however, it has become a hot spot for adventure travelers. In 2006 it was voted the happiest place on Earth. The reason is not that Vanuatu are the richest but that Vanuatu has white-sand islands, clear waters, the world's most accessible live volcano, great diving and food that grows faster than it can be picked.

    With a population of about 221,000, Vanuatu has 113 languages, which is a result of 3,000 years of immigration from many Pacific countries. There are three official languages: English, French, and Bislama. Bislama developed from South Pacific English, a simplified language that traders and other foreigners used it to communicate with speakers of the many local languages.

    Most of the islands are mountainous and of volcanic origin. There are several active volcanoes in Vanuatu, including Yasur on the island of Tanna, one of the world's most accessible volcanoes. If you've ever fancied getting close to a volcano, here's your chance.

    Vanuatu Post's Underwater Post Office has quickly become one of the busiest post offices for postcards in the world! Visitors from around the world want to experience the world's first under- water post office. The Post Office is only 50 meters offshore and at just three meters below the surface, very appealing to the young and young at heart. Since opening in 2003, the underwater post office has received about 100,000 visitors. They have posted one of the waterproof(防水的)postcards available in Vanuatu; these cards are collected regularly by one of Vanuatu Post's four trained divers. The underwater branch is manned daily for usually about an hour, longer with demand.