Genetics
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Genetics: It is the branch of science that deals with the principles of inheritance and its practices.
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Mendel was the first to carry out the study on the transmission of characteristics from parents to offspring.
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Mendel proposed that heredity is controlled by genes.
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Mendel’s law of inheritance
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Mendel experimented on garden pea plant (Pisum sativum) having many visible contrasting characters.
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He used seven contrasting pairs of characters or traits in garden pea.
Trait |
Dominant trait |
Recessive trait |
Seed shape |
Round |
Wrinkled |
Seed colour |
Yellow |
Green |
Flower colour |
Violet |
White |
Pod shape |
Full |
Constricted |
Flower position |
Axial |
Terminal |
Stem height |
Tall |
Dwarf |
Pod colour |
Green |
Yellow |
…
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