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相关概念视频

Multiple Allele Traits01:49

Multiple Allele Traits

The Concept of Multiple Allelism
Cancers Originate from Somatic Mutations in a Single Cell02:21

Cancers Originate from Somatic Mutations in a Single Cell

Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancers Originate from Somatic Mutations in a Single Cell02:21

Cancers Originate from Somatic Mutations in a Single Cell

Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Genetic Variation01:25

Genetic Variation

Genetic variation is the diversity in DNA sequences found among individuals of the same species. This diversity is crucial for a species' survival because it helps organisms adapt to environmental changes. Genetic variation begins with fertilization, where an egg and sperm cell merge. Each of these cells carries 23 chromosomes, up to 46 in the fertilized egg. Chromosomes are long DNA strands that contain genes, the basic units of heredity.
Genes exist in different versions called alleles, which...

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相关实验视频

Updated: Jun 30, 2026

Teratoma Generation in the Testis Capsule
05:24

Teratoma Generation in the Testis Capsule

Published on: November 7, 2011

三种不同的人类瘤细胞系含有不同的瘤基因.

M J Murray, B Z Shilo, C Shih

    Cell
    |August 1, 1981
    PubMed
    概括

    研究人员在结肠,膀和白血病癌细胞中发现了不同的人类转化基因. 当这些基因被引入小鼠细胞时,会导致癌变,这表明特定的瘤基因驱动瘤生长.

    科学领域:

    • 在瘤学瘤学.
    • 分子生物学分子生物学
    • 遗传学 是一个遗传学.

    背景情况:

    • 癌症细胞系存在遗传变异,导致不受控制的增殖.
    • 识别特定的瘤基因对于理解癌症发展和向治疗至关重要.

    研究的目的:

    • 从癌症和白血病细胞系中分离和描述人类转化基因.
    • 研究特定人类DNA序列在细胞转化中的作用.

    主要方法:

    • 鼠标细胞与来自瘤细胞系的人类DNA的感染.
    • 混合化测试使用重复的人类DNA探针来检测人类序列.
    • 在二次焦点中分析DNA限制片段.

    主要成果:

    • 转染产生了含有人类DNA的转化小鼠细胞的焦点.
    • 二次焦点,由重传染产生的,含有与转变基因相关的人类DNA序列.
    • 每种瘤类型的二次焦点都有不同的DNA片段,这表明了独特的转变基因.

    结论:

    • 这项研究成功地识别并区分了人类结肠癌,膀癌和前兆细胞白血病细胞系的转化基因.
    • 研究的每个瘤细胞系都含有一个独特的转化基因,负责观察到的细胞转化.

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