Read the summary and the most important questions on Genetics A Conceptual Approach | 9781464150944 | Benjamin A. Pierce

• 1 Introduction to Genetics

• 1.1 Genetics is Important to us Individually, to Society, and to the Study of Biology

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• How have humans participated in genetics in the distant past?

  Through plant and animal domestication

• What role does genetics play in biology?

  It creates a unifying key principle that says that all organisms use genetic systems that have common features

• How much DNA is estimated to be in the biosphere?

  5.3 x 10^31 megabase pairs

• What are the three major subdisciplines in genetics?

  Transmission genetics
  Molecular genetics
  Population genetics

• What does transmission genetics focus on?

  Classical Mendellian genetics including heredidy and arrangement of genes on chromosomes

• What does Molecular Genetics focus on?

  The chemical structure, organization and function of genes

• What are model genetic organismsm?

  Organisms that serve as models for the genetic systems of humans

• 1.2 Humans have been using Genetic Techniques for Thousands of Years

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• How long have humans been domesticating plants and animals?

  10,000 - 12,000 years

• What are the four ancient theories of inheritance that were covered in chapter 1?

  Pangenesis
  Inheritance of Aquired Characteristics
  Preformationism
  Blending Inheritance

• What was the idea behind pangenesis?

  Every body part has its on genetic info, which is carried to the reproductive organs in structures called Gemmules