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相关概念视频

Genomic DNA in Eukaryotes00:58

Genomic DNA in Eukaryotes

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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.
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DNA Packaging00:58

DNA Packaging

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Overview
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Genomic DNA in Prokaryotes00:46

Genomic DNA in Prokaryotes

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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...
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The DNA Helix01:16

The DNA Helix

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The DNA Helix01:07

The DNA Helix

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Deoxyribonucleic acid, or DNA, is the genetic material responsible for passing traits from generation to generation in all organisms and most viruses. DNA is composed of two strands of nucleotides that wind around each other to form a spring-like structure called a double helix. However, the double helix is not perfectly symmetrical. Instead, there are regularly occurring grooves in the structure. The major groove occurs where the sugar-phosphate backbones are relatively far apart. This space...
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DNA as a Genetic Template02:05

DNA as a Genetic Template

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Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...
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相关实验视频

Updated: Mar 9, 2026

DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
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DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation

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作为数据存储媒介的DNA

Renato Rebimbas1, Inês Glória1, Júlia Chegão1

  • 1Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.

Journal of biotechnology
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PubMed
概括
此摘要是机器生成的。

DNA数据存储为长期数据保存提供了一个可持续的解决方案,克服了电子存储的局限性. 这篇评论探讨了DNA的DNA.

关键词:
二进制编码二进制编码DNA数据存储 DNA数据存储在DNA合成过程中,解码 解码 解码 解码编码 编码 编码 编码保护 保护 保护随机访问 随机访问

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High-Density DNA and RNA microarrays - Photolithographic Synthesis, Hybridization and Preparation of Large Nucleic Acid Libraries
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Stable DNA Motifs, 1D and 2D Nanostructures Constructed from Small Circular DNA Molecules
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科学领域:

  • 生物技术是生物技术.
  • 信息科学 信息科学 信息科学
  • 材料科学 材料科学 材料科学

背景情况:

  • 传统的电子数据存储面临着可扩展性,寿命和可持续性的挑战.
  • 全球数字数据的指数增长需要新的存储解决方案.
  • 脱氧核糖核酸 (DNA) 为长期数据存档提供了高密度,稳定和节能的替代方案.

研究的目的:

  • 提供基于DNA的数据存储技术的全面审查.
  • 涵盖整个信息生命周期,从编码到物理保存.
  • 突出技术进步和该领域的剩余挑战.

主要方法:

  • 审查当前的编码策略 (受约束的编码,基于编码器的系统).
  • 对DNA合成技术的分析 (化学与酶的方法).
  • 测序平台和错误纠正/解码策略的检查 (里德-所罗门,喷泉代码,HEDGES,DNA-Aeon).
  • 评估随机访问和DNA保存方法 (现场,现场).

主要成果:

  • DNA提供了卓越的理论信息密度 (455 exabytes/gram) 和长期稳定性.
  • 各种编码和合成方法正在进步,正在努力减轻生化局限性.
  • 下一代测序和先进的错误校正正在提高数据检索准确度.
  • 随机访问和保存技术的进步提高了数据的可访问性和稳定性.

结论:

  • DNA数据存储是可扩展,强大和可持续的长期数据保存的有希望的技术.
  • 关键的挑战仍然在于优化合成,纠错和随机访问以实现实际应用.
  • 持续的研究和开发对于实现基于DNA的数据存储的全部潜力至关重要.