gregor mendel the father of genetics. 2 gregor mendel (1822-1884) responsible for the laws governing...

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Gregor Mendel The Father of Genetics

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Page 1: Gregor Mendel The Father of Genetics. 2 Gregor Mendel (1822-1884) Responsible for the Laws governing Inheritance of Traits

Gregor Mendel

The Father of Genetics

Page 2: Gregor Mendel The Father of Genetics. 2 Gregor Mendel (1822-1884) Responsible for the Laws governing Inheritance of Traits

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Gregor Gregor MendelMendel(1822-1884)(1822-1884)

Responsible Responsible for thefor the Laws Laws governing governing Inheritance Inheritance of Traitsof Traits

Page 3: Gregor Mendel The Father of Genetics. 2 Gregor Mendel (1822-1884) Responsible for the Laws governing Inheritance of Traits

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Gregor Johann MendelGregor Johann MendelAustrian monkAustrian monkStudied the Studied the inheritance of traits in inheritance of traits in pea plantspea plantsDeveloped the laws of Developed the laws of inheritanceinheritanceMendel's work was Mendel's work was not recognized until not recognized until the turn of the 20th the turn of the 20th centurycentury

Page 4: Gregor Mendel The Father of Genetics. 2 Gregor Mendel (1822-1884) Responsible for the Laws governing Inheritance of Traits

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Gregor Johann MendelGregor Johann MendelBetween 1856 and Between 1856 and 1863, Mendel 1863, Mendel cultivated and tested cultivated and tested some some 28,000 pea plants28,000 pea plantsHe found that the He found that the plants' offspring plants' offspring retained traits of the retained traits of the parentsparentsCalled the “Father of Called the “Father of GeneticsGenetics""

Page 5: Gregor Mendel The Father of Genetics. 2 Gregor Mendel (1822-1884) Responsible for the Laws governing Inheritance of Traits

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Site of Gregor Site of Gregor Mendel’s Mendel’s

experimental experimental garden in the garden in the

Czech RepublicCzech Republic

Page 6: Gregor Mendel The Father of Genetics. 2 Gregor Mendel (1822-1884) Responsible for the Laws governing Inheritance of Traits

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Mendel’s Experimental MethodsMendel’s Experimental Methods

•Mendel hand-pollinated Mendel hand-pollinated flowers using a paintbrushflowers using a paintbrush–He could snip the He could snip the stamens to prevent self-stamens to prevent self-pollinationpollination

•He traced traits through He traced traits through the several generationsthe several generations

Page 7: Gregor Mendel The Father of Genetics. 2 Gregor Mendel (1822-1884) Responsible for the Laws governing Inheritance of Traits

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Page 8: Gregor Mendel The Father of Genetics. 2 Gregor Mendel (1822-1884) Responsible for the Laws governing Inheritance of Traits

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Page 9: Gregor Mendel The Father of Genetics. 2 Gregor Mendel (1822-1884) Responsible for the Laws governing Inheritance of Traits

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Following the GenerationsFollowing the Generations

Cross 2 Cross 2 Pure Pure PlantsPlantsTT x tt

Results Results in allin all HybridsHybridsTtTt

Cross 2 Cross 2 HybridsHybridsgetget3 Tall & 1 3 Tall & 1 ShortShortTT, Tt, ttTT, Tt, tt