Mains Paper II · 3 Science & Technology · 3.1 Living world, cell and genetics

3.1.5 DNA, chromosomes, sex determination and genetic disorders

DNA is a double helix that carries the code for proteins through RNA, and changes in genes or in chromosome number cause inherited disorders such as haemophilia, sickle-cell anaemia and Down syndrome.

  • APPSC Group 2 · Mains Paper II
  • Advanced level
  • 6 min read
  • Free in the app

Key terms

  • DNA
  • double helix
  • Watson Crick
  • central dogma
  • genetic code
  • sex determination
  • Down syndrome
  • haemophilia
  • sickle cell
  • Human Genome Project

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Mains writingMains writing
  5. Common trapsFoundation
  6. Quick revisionFoundation

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