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Aim: Why did Gregor Mendel’s experiments with pea plants lead to the science of genetics?

Aim: Why did Gregor Mendel’s experiments with pea plants lead to the science of genetics?. Text Ch 11 Introduction to Genetics Read pages 262 – 269 HW # 6 pg. 266 q 1-5 on loose leaf pg. 269 q 1-5.

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Aim: Why did Gregor Mendel’s experiments with pea plants lead to the science of genetics?

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  1. Aim: Why did Gregor Mendel’s experiments with pea plants lead to the science of genetics? Text Ch 11 Introduction to Genetics Read pages 262 – 269 HW # 6 pg. 266 q 1-5 on loose leaf pg. 269 q 1-5

  2. The science of genetics was born in 1856, when an Austrian monk named Gregor Mendel performed an historic series of experiments on pea plants, thus discovering the laws of heredity. Gregor Mendel, The Father of Genetics

  3. Figure 11-3 Mendel’s Seven F1 Crosses on Pea Plants Characteristics of the Pea Plant Section 11-1 Seed Shape Seed Color Seed Coat Color Pod Shape Pod Color Flower Position Plant Height Round Yellow Gray Smooth Green Axial Tall Wrinkled Green White Constricted Yellow Terminal Short Round Yellow Gray Smooth Green Axial Tall Go to Section:

  4. Tt X Tt Cross Punnett Square to determine the probability of offspring Section 11-2 P Tall X Short TT tt F1 Key P = parents F1 =First generation F2 = Second generation Go to Section:

  5. Tt X Tt Cross F1 Hybrid Tall X Hybrid Tall Section 11-2 F2 generation Go to Section:

  6. Groups: Work out these probabilities using the Punnett Square P Round X Wrinkled seed shape F1 F2 P Yellow X Green seed color F1 F2 P Gray X White seed coat color F1 F2

  7. Use a 16 box Punnett Square to follow 2 traits of the pea plant F1 dihybrid tall yellow X dihybrid tall yellow

  8. Incomplete Dominance Both alleles have an effect on the phenotype of the organism

  9. Alleles are separated during gamete formation “Factors” determine traits Some alleles are dominant, and some alleles are recessive Pea plants Law of Dominance Law of Segregation Concept Map Mendel’s Principles Section 11-3 Gregor Mendel concluded that experimented with which is called the which is called the Today we know “Factors” are genes Go to Section:

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