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Revision: The Bases of Human Behaviour Psychology Commerce (English Medium) Class 11 CBSE

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Definitions [2]

Define heredity.

Heredity is the process by which the biological characters from the parental generation are transmitted to the next generation through genes.

Definition: Heredity

The term heredity may be defined as "transmission of genetically based characteristics from parents to offspring".

or

Heredity is the process by which biological characteristics are passed from one generation to the next through genes.

 

Key Points

Key Points: Heredity
  • Mendel is the father of modern genetics; he discovered the basic principles of heredity.
  • Hugo de Vries (1901) proposed the mutation theory explaining sudden genetic changes.
  • Walter Sutton (1902) linked chromosomes with heredity through his study on grasshoppers.
  • Avery, McCarty & McLeod (1944) proved DNA is the genetic material in living organisms.
  • Jacob & Monod (1961) developed a model of protein synthesis, leading to recombinant DNA technology.

Concepts [10]

  • The Bases of Human Behaviour
  • Evolutionary Perspective
  • Biological and Cultural Roots
  • Biological Basis of Behaviour
  • Structure and Functions of Nervous System and Endocrine System and Their Relationship Wtth Behaviour and Experience
  • Heredity
  • Cultural Basis: Socio-cultural Shaping of Behaviour
  • Enculturation
  • Socialisation
  • Acculturation
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