guanine

/ˈɡwɑː.niːn/

Meanings

noun

鸟嘌呤

A substance first obtained from guano; it is a nucleic base and pairs with cytosine in DNA and RNA (by means of three hydrogen bonds).

Examples :

"The scientist studied the guanine content in the DNA samples from the ancient fossils. "

科学家研究了从古代化石中提取的DNA样本中的鸟嘌呤含量。

Related Words

guano noun

/ˈɡwɑːnəʊ/

鸟粪, 蝙蝠粪便

"The farmer used guano from the island to fertilize his fields, hoping it would improve his crop yield. "

那个农民用岛上的鸟粪给田地施肥，希望这样能提高农作物的产量。

fossils noun

/ˈfɒsɪlz/ /ˈfɑːsəlz/

化石，遗骸。

"The museum displayed fossils of dinosaurs that lived millions of years ago. "

博物馆里陈列着数百万年前恐龙的化石遗骸。

hydrogen noun

/ˈhaɪdɹədʒ(ə)n/ /ˈhaɪdɹədʒən/

氢，氢气。

"Hydrogen is the simplest chemical element, with only one proton in its atom. "

氢是结构最简单的化学元素，它的原子中只有一个质子。

substance noun

/ˈsʌbstəns/

物质, 材料

"The scientist carefully examined the substance to determine its chemical composition. "

科学家仔细检查了这种物质，以确定它的化学成分。

studied adjective

/ˈstʌdid/

做作的，谨慎的，刻意的。

"She gave a studied reply."

她的回答显得很做作，明显是斟酌过的。

obtained verb

/əbˈteɪnd/

获得，取得。

"She obtained her driver's license after passing the driving test. "

她通过了驾驶考试，获得了她的驾照。

first noun

/fɪrst/ /fɜːst/ /fɝst/

第一名，首位

"He was the first to complete the course."

他是第一个完成课程的人。

ancient noun

/ˈeɪn.ʃənt/

古人，老人

"The ancient librarian was known for her vast knowledge of history. "

这位年迈的图书管理员以她渊博的历史知识而闻名。

cytosine noun

/ˈsaɪtəsiːn/

胞嘧啶

"In the DNA sequence, cytosine always pairs with guanine, like two puzzle pieces fitting together. "

在DNA序列中，胞嘧啶总是和鸟嘌呤配对，就像两块拼图严丝合缝地拼接在一起。

content noun

/kənˈtɛnt/ /ˈkɒn.tɛnt/ /ˈkɑn.tɛnt/

满足，满意，高兴

"My family's happy vacation brought a feeling of content to everyone. "

我家幸福的假期给每个人都带来了满足感。

samples noun

/ˈsæmpəlz/ /ˈsɑːmpəlz/

样品，样本，抽样。

"a blood sample"

一个血液样本

scientist noun

/ˈsaɪ.ən.tɪst/

科学家，科学工作者。

"The scientist studied the effects of different types of soil on plant growth. "

那位科学家研究了不同类型的土壤对植物生长的影响。