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principle of segregation
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family pedigree Mendel's law of segregationCross of a purple-flowered and a white-flowered strain of peas; R stands for the gene for purple flowers and r for the gene for white flowers.
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An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.
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Title: Senate Square, St. Petersburg, December 14, 1825: repression of the troop mutiny - watercolor by Carl Ivanovitch Kollman, 1825 depicts Decembrist uprising clashing with cavalry, with spectators watching. (new style December 26, 1825) Europe. Saint
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Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.
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principle of segregation

genetics
Also known as: Mendel’s first law, law of segregation

Learn about this topic in these articles:

characteristics of heredity

  • Carolus Linnaeus.
    In heredity: Discovery and rediscovery of Mendel’s laws

    …first law of Mendel, the law of segregation of unit genes. Equal numbers of gametes, ovules, or pollen grains are formed that contain the genes R and r. Now, if the gametes unite at random, then the F2 generation should contain about 1/4 white-flowered and 3/4 purple-flowered plants. The white-flowered

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place in Mendel’s theories

  • Gregor Mendel
    In Gregor Mendel: Theoretical interpretation

    …since been described as the law of segregation, or the doctrine of the purity of the germ cells. Since one pollen cell fuses with one egg cell, all possible combinations of the differing pollen and egg cells would yield just the results suggested by Mendel’s combinatorial theory.

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  • Mendelian inheritance
    In Mendelian inheritance

    …basic laws, known as the law of segregation and the law of independent assortment.

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