Lagging strand,中文称为后随链或滞后链,是DNA复制过程中的一个关键组成部分。在DNA双链解开并准备复制时,由于DNA聚合酶只能沿5'至3'方向添加新的核苷酸,因此复制过程会形成两条子链:一条是随着复制叉移动方向连续合成的,称为前导链(leading strand);另一条则是与复制叉移动方向相反,...
(1)Leading strand is the DNA strand that synthesized continuously in the 5′ to 3′ direction as the parental duplex is unwound. It is primed one time during synthesis and uses the DNA strand 3’ to 5’ as template. 前导链是指随着亲本双螺旋的解开而按照5′ 3′方向连续合成的DNA子链...
百度试题 结果1 题目半不连续性: 领头链(leading strand) 随从链(lagging strand) 冈崎片段(Okazaki fragment)相关知识点: 试题来源: 解析 pol I,pol III 反馈 收藏
lagging strand上之所以出现基因,是由于基因组上随机发生的倒位(inversion)突变将编码在 leading strand 上的基因转换为 lagging strand 上的基因,而另一方面自然选择将 lagging strand 上的基因逐渐移除,这种由倒位突变与自然选择的平衡(mutation-selection balance)维持了lagging strand上一定的基因数量。这也是主流的传统...
DNA polymerase alpha-primase complex first initiates DNA synthesis at the replication origin and continues as the lagging strand polymerase. Subsequently, the DNA polymerase delta complex initiates replication on the leading strand template. Some prokaryotic DNA polymerase complexes can replace the ...
滞后链(lagging strand) 名词解释 滞后链(lagging strand) 【参考答案】 与复制叉移动的方向相反,通过不连续地5ˊ→3ˊ聚合合成的新的DNA链。 热门试题 名词解释 什么是前导链(leading strand); 前导链(leading strand)名词解释定义是什么? 点击查看答案...
题目 (翻译)The leading strand is synthesized continuously, while the lagging strand is synthesized in short stretches known as Okazakifragments. 相关知识点: 试题来源: 解析 正确答案:答:前导链是连续合成的,而后随链是以短的直线状的冈崎片段合成。 反馈 收藏 ...
One strand is the leading strand; the other, the lagging strand. Because of the way DNA replicates, the enzyme that copies the lagging strand is unable to copy the DNA all the way to the end of the chromosome. The search to understand how cells age Any driver who picks up this Hitchhi...
Define Lagging strand. Lagging strand synonyms, Lagging strand pronunciation, Lagging strand translation, English dictionary definition of Lagging strand. A thoroughfare in west-central London, England, running parallel to the northern bank of the Thames
14. DNA Replication Topic summary Created using AI During DNA replication, two strands are formed: the leading and lagging strands. The leading strand is synthesized continuously in the same direction as the replication fork, requiring only oneRNA primer. In contrast, the lagging strand...