CBSE Class 10 Science Chapter 9 Heredity and Evolution Notes PDF

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What does heredity refer to?

Passing of characteristics from one generation to the next

What are genes?

Functional units of heredity that transfer characteristics from parents to offspring

What is genetics?

Branch of biology dealing with the study of genes, heredity, and variations

What does evolution refer to?

<p>Gradual process by which simple life form leads to the development of complex organisms over time</p> Signup and view all the answers

What do genes code for?

<p>Specific protein or RNA</p> Signup and view all the answers

Study Notes

Heredity and Genetics

  • Heredity refers to the passing of characteristics from parents to offspring through the transmission of genetic information.
  • Genes are the basic units of heredity, carrying information from one generation to the next.

What are Genes?

  • Genes are segments of DNA that code for specific traits or characteristics.
  • Genes code for proteins, which perform a wide range of functions in the cell.

Genetics

  • Genetics is the scientific study of heredity and variation in organisms.

Evolution

  • Evolution refers to the gradual change of species over time through the process of natural selection, genetic drift, mutation, and gene flow.

Gene Function

  • Genes code for specific proteins, which determine the development, growth, and function of an organism.
  • Genes also regulate the expression of traits, such as eye color, hair color, and height.

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