Word · Frequency #9438
plasmid
质粒
a small circular DNA molecule in a cell that can replicate independently of the chromosomes
- 1.
A loop of double-stranded DNA that is separate from — and replicates independently of — the chromosomes; such loops are most commonly found in bacteria, but they are also sometimes found in archaeans and eukaryotic cells, and they are used in genetic engineering as a vector for gene transfer.
质粒:一种双链DNA环,独立于染色体并自主复制；常见于细菌,也见于古菌和真核细胞,在基因工程中用作基因转移载体。
- 2.
a small cellular inclusion consisting of a ring of DNA that is not in a chromosome but is capable of autonomous replication
质粒
质粒:一种双链DNA环,独立于染色体并自主复制；常见于细菌,也见于古菌和真核细胞,在基因工程中用作基因转移载体。；[医] 质体(胞质遗传体)
In use
A plasmid is a small loop of DNA that bacteria can copy independently.
Scientists insert a gene into a plasmid before putting it into a cell.
Some plasmids give bacteria the ability to break down certain chemicals.
plasmid DNA
The plasmid DNA was extracted from the bacterial culture.
从细菌培养物中提取了质粒DNA。
plasmid vector
A plasmid vector is used to clone the target gene.
质粒载体用于克隆目标基因。
plasmid containing [gene]
Connections
Collocations
- plasmid DNA
- 质粒DNA
- The plasmid DNA was isolated from bacterial cells.从细菌细胞中分离出质粒DNA。
- plasmid vector
- 质粒载体
- The gene was inserted into a plasmid vector for expression.该基因被插入到质粒载体中进行表达。
- recombinant plasmid
- 重组质粒
- A recombinant plasmid carrying the target gene was constructed.构建了携带目标基因的重组质粒。
- plasmid replication
- 质粒复制
- Plasmid replication occurs independently of chromosomal replication.质粒复制独立于染色体复制进行。
- plasmid transformation
- 质粒转化
- Plasmid transformation efficiency was measured after heat shock.热激后测量了质粒转化效率。
- plasmid extraction
Learner notes
Memory Tip
质粒是细胞质中的环状DNA，想象“plasma”（血浆）中有个“mid”（中间）的环。
Context & Register
语域：formal 常见场景：分子生物学、遗传学、医学 通常用于科学和医学领域，是比较正式的学术词汇。
Grammar Note
可数名词，复数形式为 plasmids。
Pronunciation & Spelling
These words all share the 'mid' ending and have the same final syllable as 'plasmid': /-mɪd/.
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.