cytosine

/ˈsaɪtəsiːn/

Meanings

noun

胞嘧啶

A heterocyclic base, 4-aminopyrimidin-2(1H)-one, which pairs with guanine in DNA and RNA (by means of three hydrogen bonds).

Examples :

"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。

Related Words

fitting verb

/fɪtɪŋ/

适合，适应.

"It fits the purpose."

它很适合这个目的.

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。

sequence noun

/ˈsiːkwəns/

序列, 顺序, 次序

"The sequence of events in the school play was: introduction, conflict, climax, and resolution. "

学校戏剧的事件顺序是：介绍，冲突，高潮和结局。

puzzle noun

/ˈpʌzəl/

难题，谜题

"Where he went after he left the house is a puzzle."

他离开家后去了哪里，这真是个谜。

guanine noun

/ˈɡwɑː.niːn/

鸟嘌呤

"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。

heterocyclic noun

/ˌhɛtəroʊˈsaɪklɪk/ /ˌhɛtərəˈsaɪklɪk/

杂环，杂环化合物

"The pharmaceutical company is researching a new drug that contains a specific heterocycle known for its potential anti-inflammatory properties. "

这家制药公司正在研发一种新药，其中含有一种特定的杂环化合物，这种化合物因其潜在的抗炎特性而闻名。

always adverb

/ˈɔː(l).weɪz/ /ˈɔl.weɪz/

总是，一直，始终。

"Airplanes did not always exist as a form of transportation."

飞机作为一种交通工具，并不是一直都存在的。

which pronoun

/wɪt͡ʃ/

哪个，哪些

"By now, you must surely know which is which."

到现在，你肯定应该知道哪个是哪个了吧。

together adjective

/təˈɡɛð.ə(ɹ)/ /təˈɡɛðɚ/

有条理的, 井井有条的。

"The teacher's lesson plan was together, covering all the key concepts logically. "

老师的教案很有条理，逻辑清晰地涵盖了所有关键概念。

pieces noun

/ˈpiːsɪz/

碎片，部分。

"I’d like another piece of pie."

我想再要一块派。

pairs noun

/pɛəz/ /pɛɹz/

一对，一双

"Here are the pairs of socks I washed. "

这些是我洗的一双双袜子。

means verb

/miːnz/

哀悼，悲叹

"The student means their lost homework, feeling very sad about the missing paper. "

学生因为丢失的作业而哀叹，对丢失的作业感到非常难过。