相关实验视频

Updated: May 22, 2026

Assessment of DNA Contamination in RNA Samples Based on Ribosomal DNA
13:16

Assessment of DNA Contamination in RNA Samples Based on Ribosomal DNA

Published on: January 22, 2018

在Neurospora crassa线粒体中,高度保存的富含GC的PalindromicDNA序列与tRNA基因并排

S Yin, J Heckman, U L RajBhandary

    Cell
    |November 1, 1981
    PubMed
    概括

    神经毛虫的线粒体DNA含有保存的富含GC的Palindromic序列,围绕着tRNA基因. 这些序列,包括一个核心18bp序列与Pst I位点,可能在线粒体RNA合成和处理中发挥作用.

    更多相关视频

    Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins10:46

    Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins

    Published on: October 18, 2022

    Transfection of a Molecular Clone of Naegleria gruberi rDNA into N. gruberi Trophozoites06:55

    Transfection of a Molecular Clone of Naegleria gruberi rDNA into N. gruberi Trophozoites

    Published on: June 21, 2024

    相关概念视频

    Genomic DNA in Prokaryotes00:46

    Genomic DNA in Prokaryotes

    The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
    Genomic Diversity in Bacteria
    Although bacterial genomes are much...
    Genomic DNA in Eukaryotes00:58

    Genomic DNA in Eukaryotes

    Eukaryotes have large genomes compared to prokaryotes. To fit their genomes into a cell, eukaryotic DNA is packaged extraordinarily tightly inside the nucleus. To achieve this, DNA is tightly wound around proteins called histones, which are packaged into nucleosomes that are joined by linker DNA and coil into chromatin fibers. Additional fibrous proteins further compact the chromatin, which is recognizable as chromosomes during certain phases of cell division.
    DNA Packaging00:58

    DNA Packaging

    Overview
    DNA Packaging00:58

    DNA Packaging

    Overview
    Multi-species Conserved Sequences02:51

    Multi-species Conserved Sequences

    Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale  studies have provided new insights into the evolutionary relationship between organisms.
    Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved DNA...
    Endospores and Sporulation01:20

    Endospores and Sporulation

    Endospores are specialized, dormant cells primarily formed by Gram-positive bacteria, including Bacillus and Clostridium, enabling survival under extreme environmental conditions. Due to their unique composition and formation process, these structures are highly resistant to physical and chemical insults, such as extreme heat, ultraviolet and ionizing radiation, desiccation, and toxic chemicals. Rare instances of endospore-like structures have also been observed in some Gram-negative bacteria,...