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Transcript of Copyright © 2010 Pearson Education Inc. Lecture 02 – Mendelian Genetics Based on Chapter 11 –...
![Page 1: Copyright © 2010 Pearson Education Inc. Lecture 02 – Mendelian Genetics Based on Chapter 11 – Mendelian Genetics.](https://reader030.fdocuments.in/reader030/viewer/2022020417/5697bf881a28abf838c8970e/html5/thumbnails/1.jpg)
Copyright © 2010 Pearson Education Inc.
Lecture 02 – Mendelian GeneticsBased on Chapter 11 – Mendelian Genetics
![Page 2: Copyright © 2010 Pearson Education Inc. Lecture 02 – Mendelian Genetics Based on Chapter 11 – Mendelian Genetics.](https://reader030.fdocuments.in/reader030/viewer/2022020417/5697bf881a28abf838c8970e/html5/thumbnails/2.jpg)
1. Introduction
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2. Genotype and Phenotype
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3a. Mendel’s Experimental Design
• Mendel used garden peas (Pisum sativum)• Established “true breeding” plants
– Now called inbred plants
• Carefully made crosses between true breeding lines
• Mathematically analyzed the results of the crosses and subsequent generations of plants.
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3b. Mendel’s Experimental Design
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4a. Monohybrid Crosses and Mendel’s Principle of Segregation
• Terminology used in breeding experiments:
• Parental generation is the P generation.
• Progeny of P generation is the first filial generation, designated F1.
• When F1 interbreed, the second filial generation, F2, is produced.
• Subsequent interbreeding produces F3, F4, and F5 generations.
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4b. Monohybrid Crosses and Mendel’s Principle of Segregation
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4c. Monohybrid Crosses and Mendel’s Principle of Segregation
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4d. Monohybrid Crosses and Mendel’s Principle of Segregation
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5a. The Principle of Segregation
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5b. The Principle of Segregation
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6a. Dihybrid Crosses and Mendel’s Principle of Independent Assortment
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6b. Dihybrid Crosses and Mendel’s Principle of Independent Assortment 1.
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6c. Dihybrid Crosses and Mendel’s Principle of Independent Assortment
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6d. Dihybrid Crosses and Mendel’s Principle of Independent Assortment
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6e. Dihybrid Crosses and Mendel’s Principle of Independent Assortment
The “Rediscovery” of Mendel’s Principles• Mendel’s work was published in 1866
– received little attention from the scientific community until about 1900
– Correns, deVries, and von Tschermark independently conducted experiments with similar results.
• In 1902 William Bateson, experimenting with fowl, showed that Mendelian principles apply in animals. – He coined the terms genetics, zygote, F1,
F2, and allelomorph (which was shortened to allele).
• W. L. Johannsen named Mendelian factors genes in 1909, from the Greek genos, meaning “birth.”
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7a. Mendelian Genetics in Humans
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7b. Mendelian Genetics in Humans
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7c. Mendelian Genetics in Humans
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7d. Mendelian Genetics in Humans