解析 答:DNA在进行复制的时候链间氢键断裂,双链解旋分开,每条链作为模板在其上合成互补链,经过一系列酶(DNA聚合酶、解旋酶、链接酶等)的作用生成两个新的DNA分子。子代DNA分子其中的一条链来自亲代DNA,另一条连链是新合成的,这种方式称半保留复制。
百度试题 题目Semiconservative replication (半保留复制):通过亲本DNA双螺旋两链分开,每一链作为模板合成新的互补链的复制方式。相关知识点: 试题来源: 解析 正确 反馈 收藏
由于每个DNA分子的两条多核苷酸链中一条是来自亲代的DNA分子另一条是新合成的所以称为半保留复制。 以DINA双链中的单链分别为模板,根据碱基互补的原则,复制合成新链。由于每个DNA分子的两条多核苷酸链中,一条是来自亲代的DNA分子,另一条是新合成的,所以称为半保留复制。 复制 纠错...
DNA Replication Bubbles: DNA replication does not just start at one end of the DNA molecule and proceed to the other - this would be inefficient and slow. Instead, it occurs at several points along the DNA molecule simultaneously. At each of these points, the...
DNA Replication: DNA is replicated prior to cell division so that the daughter cells can each have their own copy of the genome. In the case of mitosis, each daughter cell obtains a copy of the genome that is identical to that of the parent cell. Answer and Explanation:...
The first stage of DNA replication involves the unwinding of the double strand of DNA (DNA double helix) and separating them by breaking the hydrogen bonds between the bases. This is done by the enzymehelicase. 2. Each separated strand now is a template for the new strands. There are many...
DNA replication is semiconservative. Why do you think this is true?A、Requires less energy B、C、 D、 B、Only one DNA strand can be copied at a time. C、Increased fidelity D、DNA replication starts at specific sites only. E、RNA primer limitations查看...
Step-by-Step Solution:1. Understanding Semiconservative DNA Replication: - Semiconservative DNA replication means that when DNA replicates, each new DNA molecule consists of one original (parental) strand a
Replication is semiconservative because the new daughter DNA synthesized is composed of one parent DNA and one newly synthesized complementary strand of that molecule. Semi-discontinuous because during replication there are 2 complementary strands synthesized that run anti-parallel. The DNA polymerase can ...
Step-by-Step Solution:1. Understanding the Question: The question asks about the first demonstration of semiconservative replication of DNA. 2. Identifying Key Scientists: The experiment