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相关概念视频

Genomics02:02

Genomics

36.4K
Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Organization of Genes02:07

Organization of Genes

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Overview
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Genetic Material01:20

Genetic Material

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Within the human body, a complex and detailed system of trillions of cells works in unison to sustain life. Each cell houses a nucleus, which contains 46 chromosomes divided into 23 pairs. Chromosomes are highly coiled structures made of the genetic material DNA. These chromosomes are essential carriers of genetic information, with half inherited from the mother through her egg and the other half from the father's sperm, combining to create the unique genetic makeup of an individual.
1.9K
DNA as a Genetic Template02:05

DNA as a Genetic Template

22.0K
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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Structure of a Gene01:30

Structure of a Gene

12.6K
A gene is the fundamental unit of heredity. Every individual has two copies of each gene, one inherited from each parent. Although most people contain the same genes, there is a small fraction that is slightly different amongst people. A gene with a small difference in its sequence of DNA bases forms different alleles, contributing to different phenotypes.
However, only 1% of the DNA is composed of genes that encode proteins; the rest, 99% is non-coding DNA. This non-coding DNA performs...
12.6K
Human Genetics01:28

Human Genetics

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Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
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相关实验视频

Updated: Jul 16, 2025

Generation of Genome-wide Chromatin Conformation Capture Libraries from Tightly Staged Early Drosophila Embryos
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Generation of Genome-wide Chromatin Conformation Capture Libraries from Tightly Staged Early Drosophila Embryos

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基因,基因组和发育过程.

Jebediah Taylor1, Staci Meredith Weiss2,3, Peter J Marshall4

  • 1University of Michigan Law School, Ann Arbor, MI, USA jebt@umich.edu.

The Behavioral and brain sciences
|September 11, 2023
PubMed
概括
此摘要是机器生成的。

基因作为静态DNA序列是一个过时的观点. 基因的功能是动态的,受发育背景的影响,而不是固定的编码.

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相关实验视频

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科学领域:

  • 遗传学 是一个遗传学.
  • 发展生物学 发展生物学
  • 分子生物学分子生物学

背景情况:

  • 传统的看法是基因是具有固定的功能的静态DNA序列.
  • 这种观点忽视了基因表达和功能在发育背景中的动态性质.

研究的目的:

  • 挑战基因作为信息的静态单位的教条.
  • 突出时间和空间背景在基因功能中的重要性.

主要方法:

  • 现有的遗传和发育生物学范式的概念分析.
  • 批评"基因作为一个固定的产品"比喻.

主要成果:

  • 麦道尔和哈登的观点依赖于一个过时的基因教条.
  • 这种观点无法解释发育复杂性和上下文依赖的基因功能.

结论:

  • 基因不是信息的静态单位,而是动态的功能.
  • 发展系统方法是必要的,以准确地了解基因功能.