genetics

• Who conducted experiments with pea plants in the mid-19th century?

  Gregor Mendel
• What did Mendel discover about characteristics in his experiments?


  Characteristics are inherited through discrete units called genes.
• Why was Mendel's work not recognized during his lifetime?


  There was no knowledge of chromosomes and DNA at the time.
• In which century did scientists begin to observe the behavior of chromosomes during cell division?


  In the late 19th century.
• What did the observations of chromosomes during cell division link to Mendel's work?


  They linked to Mendel's "units" of inheritance.
• When was the structure of DNA discovered?


  In the mid-20th century.
• What was formed as a result of understanding the structure of DNA and gene function?


  The gene theory was formed.
• What are the key milestones in the understanding of genetics from Mendel to the discovery of DNA structure?


  • Mendel's experiments with pea plants (mid-19th century)
  • Discovery of genes as discrete units of inheritance
  • Lack of recognition due to ignorance of chromosomes and DNA
  • Observations of chromosomes during cell division (late 19th century)
  • Discovery of DNA structure and gene function (mid-20th century)
  • Formation of the gene theory