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Pedigree Analysis01:35

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When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
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Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
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A level surface consists of all points in space where a function of three variables takes the same fixed value. If a point lies on this surface, understanding the surface’s geometry there requires more than just knowing the point’s coordinates; it requires describing how the surface is oriented, or how it tilts, near that point.To probe this local geometry, imagine tracing a path that stays entirely on the level surface and passes through the point of interest. This path can be described as a...

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Quantification of Orofacial Phenotypes in Xenopus
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モルフォゲン・グラデント解釈

J B Gurdon1, P Y Bourillot

  • 1Wellcome/CRC Institute, Cambridge, UK. j.gurdon@welc.cam.ac.uk

Nature
|October 26, 2001
PubMed
まとめ
この要約は機械生成です。

モルフォゲン・グラディエントは,細胞の運命をシグナリングすることによって,胚の発達を導く. 最近の進歩により,細胞がこれらの重要な細胞外信号を検知し,それに反応する方法が明らかになりました.

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関連する実験動画

Last Updated: Jun 25, 2026

Quantification of Orofacial Phenotypes in Xenopus
09:26

Quantification of Orofacial Phenotypes in Xenopus

Published on: November 6, 2014

Development of an Individual-Tree Basal Area Increment Model using a Linear Mixed-Effects Approach
04:35

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Published on: July 3, 2020

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科学分野:

  • 発達生物学 発達生物学について
  • 細胞シグナル伝達 細胞信号伝達
  • 胚形成とは,胚の形成である.

背景:

  • モルフォゲン・グラデーションは,胚の発達を理解する上で不可欠です.
  • 細胞外信号伝達を通じて細胞の位置,分化,そして運命を決定する.
  • このコンセプトは数十年前から確立されていますが,細胞センサーのメカニズムはまだ調査中です.

研究 の 目的:

  • 細胞がモルフォゲン・グラデーションを感知し,それに反応するメカニズムを探求する.
  • モルフォゲン・グラデーションの確立された概念と細胞反応の理解の間のギャップを埋めるために.

主な方法:

  • 先進的な実験システムを活用する.
  • 新しい分析方法を使用しています.
  • 信号因子の低濃度に対する細胞反応の調査.

主要な成果:

  • 最近の実験・分析技術の進歩により,より深い理解が可能になった.
  • 細胞が信号分子の濃度における微妙な変化をどのように認識し,それにどのように反応するかについての洞察が浮上しています.

結論:

  • この研究は,モルフォゲン・グラデーションに対する細胞の反応を理解する上で最近の進歩を強調しています.
  • これは,発達中の細胞運命を決定する上で,これらのグラデーションの重要性を強調しています.