initiator terminator

简明释义

起动-终止程序

英英释义

例句

1.The role of the initiator terminator in DNA replication is crucial for ensuring accurate copying of genetic information.

在DNA复制中，启动子终止子的作用对于确保遗传信息的准确复制至关重要。

2.In programming, an initiator terminator can help define the start and end of a code block.

在编程中，启动子终止子可以帮助定义代码块的开始和结束。

3.In project management, establishing an initiator terminator helps clarify the project's scope and objectives.

在项目管理中，建立一个启动子终止子有助于明确项目的范围和目标。

4.The initiator terminator in a communication protocol defines how messages are initiated and terminated.

通信协议中的启动子终止子定义了消息是如何启动和终止的。

5.The initiator terminator sequence is essential for the transcription process in molecular biology.

在分子生物学中，启动子终止子序列对于转录过程至关重要。

作文

In the realms of biology and genetics, the terms initiator terminator play a crucial role in understanding how genes are expressed. The initiator terminator refers to specific sequences in DNA that signal the beginning and end of transcription, the process by which messenger RNA (mRNA) is synthesized from a DNA template. This process is fundamental for all living organisms, as it ultimately leads to the production of proteins that carry out various functions within cells.To elaborate, the initiator sequence is often located at the start of a gene and is recognized by RNA polymerase, the enzyme responsible for transcription. It serves as a signal for the enzyme to bind and begin synthesizing mRNA. Without this initiator terminator, the transcription process would not commence, leading to a lack of necessary proteins for cellular function.On the other hand, the terminator sequence signals the end of transcription. When RNA polymerase reaches this sequence, it detaches from the DNA, releasing the newly formed mRNA strand. This termination is equally important because it ensures that the mRNA is of the correct length and that unnecessary genetic material is not transcribed. In essence, the initiator terminator sequences work together to regulate gene expression meticulously.The significance of these sequences extends beyond mere biological processes; they also have implications in biotechnology and medicine. For instance, scientists can manipulate these sequences to control gene expression in genetically modified organisms (GMOs). By altering the initiator terminator elements, researchers can enhance or silence specific genes, leading to crops that are more resistant to pests or diseases.Moreover, understanding the initiator terminator dynamics can aid in developing gene therapies for genetic disorders. By targeting the relevant sequences, scientists can potentially correct faulty genes or introduce beneficial ones into a patient's cells. This opens up avenues for treating conditions that were previously deemed untreatable, showcasing the profound impact of these simple yet powerful sequences.In summary, the initiator terminator sequences are essential components of genetic expression, governing the start and finish of transcription. Their roles are pivotal not only in natural biological processes but also in advancing scientific research and medical therapies. As we continue to explore the intricacies of genetics, the importance of understanding initiator terminator sequences cannot be overstated, as they hold the key to unlocking numerous possibilities in the fields of biology, agriculture, and medicine.

在生物学和遗传学领域，术语initiator terminator在理解基因表达的过程中扮演着至关重要的角色。initiator terminator指的是DNA中的特定序列，这些序列标志着转录的开始和结束，转录是指从DNA模板合成信使RNA（mRNA）的过程。这个过程对于所有生物体来说都是基础，因为它最终导致了蛋白质的产生，而这些蛋白质在细胞内执行各种功能。进一步阐述，启动子序列通常位于基因的起始位置，并被RNA聚合酶识别，RNA聚合酶是负责转录的酶。它作为酶结合并开始合成mRNA的信号。如果没有这个initiator terminator，转录过程就不会开始，导致细胞功能所需的蛋白质缺乏。另一方面，终止子序列则标志着转录的结束。当RNA聚合酶到达这个序列时，它会从DNA上脱离，释放新形成的mRNA链。这个终止同样重要，因为它确保mRNA的长度正确，并且不会转录不必要的遗传物质。本质上，initiator terminator序列共同作用，以精确调节基因表达。这些序列的重要性超越了单纯的生物过程；它们在生物技术和医学中也具有深远的影响。例如，科学家可以操纵这些序列以控制转基因生物（GMO）中的基因表达。通过改变initiator terminator元素，研究人员可以增强或沉默特定基因，从而使作物对害虫或疾病更具抵抗力。此外，理解initiator terminator动态可以帮助开发针对遗传疾病的基因疗法。通过靶向相关序列，科学家有可能纠正有缺陷的基因或将有益基因引入患者的细胞中。这为治疗先前被认为无法治疗的病症开辟了新的途径，展示了这些简单而强大的序列的深远影响。总之，initiator terminator序列是基因表达的基本组成部分，主导着转录的开始和结束。它们的作用不仅在自然生物过程中至关重要，而且在推动科学研究和医疗疗法方面也具有重大意义。随着我们继续探索遗传学的复杂性，理解initiator terminator序列的重要性不容小觑，因为它们是开启生物学、农业和医学领域诸多可能性的关键。