関連する実験動画

Updated: Jul 17, 2026

Single Cell Transfection in Chick Embryos
08:46

Single Cell Transfection in Chick Embryos

Published on: September 25, 2010

細胞生物学. 細胞生物学について. プリオン伝播のタンパク質の種を蒔く

M F Tuite1

  • 1Department of Biosciences, University of Kent, Canterbury, UK.

Science (New York, N.Y.)
|August 12, 2000
PubMed
まとめ

科学者たちは,プリオン病に対するタンパク質のみの仮説を探求しています. Sup35pやUre2pのような酵母タンパク質は,通常の形態と感染形態の両方で存在し,プリオン伝播に関するこの理論を支持する説得力のある証拠を提供します.

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関連する概念動画

Transgenic Organisms00:53

Transgenic Organisms

Overview
Asexual Reproduction02:38

Asexual Reproduction

Asexual reproduction allows plants to reproduce without growing flowers, attracting pollinators, or dispersing seeds. Offspring are genetically identical to the parent and produced without the fusion of male and female gametes.
Types of Genetic Transfer Between Organisms02:18

Types of Genetic Transfer Between Organisms

Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.
Position-effect Variegation02:32

Position-effect Variegation

In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
Types of Genetic Transfer Between Organisms02:18

Types of Genetic Transfer Between Organisms

Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.