相关实验视频

Updated: Feb 7, 2026

Practical Use of RNA Interference: Oral Delivery of Double-stranded RNA in Liposome Carriers for Cockroaches
08:26

Practical Use of RNA Interference: Oral Delivery of Double-stranded RNA in Liposome Carriers for Cockroaches

Published on: May 1, 2018

9.9K

编程的双链RNA形成使微生物阶段过渡成为可能.

Hao Wu, Xinan Liu, Yihan Xiong

    bioRxiv : the preprint server for biology
    |February 6, 2026
    PubMed
    概括

    科学家们发现了一种新的RNA机制,可以在细胞分裂过程中清除旧的mRNA. 这个过程使用双链RNA (dsRNA) 来删除转录,确保适当的细胞命运过渡和基因表达.

    更多相关视频

    Separation of Single-stranded DNA, Double-stranded DNA and RNA from an Environmental Viral Community Using Hydroxyapatite Chromatography13:46

    Separation of Single-stranded DNA, Double-stranded DNA and RNA from an Environmental Viral Community Using Hydroxyapatite Chromatography

    Published on: September 29, 2011

    32.4K
    Confocal Imaging of Double-Stranded RNA and Pattern Recognition Receptors in Negative-Sense RNA Virus Infection06:44

    Confocal Imaging of Double-Stranded RNA and Pattern Recognition Receptors in Negative-Sense RNA Virus Infection

    Published on: January 26, 2019

    8.4K

    相关概念视频

    Fixing Double-strand Breaks02:04

    Fixing Double-strand Breaks

    The double-stranded structure of DNA has two major advantages. First, it serves as a safe repository of genetic information where one strand serves as the back-up in case the other strand is damaged. Second, the double-helical structure can be wrapped around proteins called histones to form nucleosomes, which can then be tightly wound to form chromosomes. This way, DNA chains up to 2 inches long can be contained within microscopic structures in a cell. A double-stranded break not only damages...
    14.8K
    Fixing Double-strand Breaks02:04

    Fixing Double-strand Breaks

    4.4K
    Lagging Strand Synthesis01:59

    Lagging Strand Synthesis

    During replication, the complementary strands in double-stranded DNA are synthesized at different rates. Replication first begins on the leading strand. Replication starts later, occurs more slowly, and proceeds discontinuously on the lagging strand.
    There are several major differences between synthesis of the leading strand and synthesis of the lagging strand. 1) Leading strand synthesis happens in the direction of replication fork opening, whereas lagging strand synthesis happens in the...
    61.4K
    RNA Interference01:23

    RNA Interference

    RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
    This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
    28.1K
    Properties of Transition Metals02:58

    Properties of Transition Metals

    Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
    29.9K
    Phase Transitions02:31

    Phase Transitions

    Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
    23.2K