Cells and Genetics Part 2

  • Discovery of Cells

    Discovery of Cells
    British scientist Robert Hooke handcrafted his own microscope and discovered that objects were made up of particles wihch he called "cells."
  • Announcement of Natural Selection

    Announcement of Natural Selection
    Charles Darwin and Alfred Russel Wallace make the joint announcement of the theory of natural selection-that members of a population who are better adapted to the environment survive and pass on their traits.
  • Cell Reproduction

    Cell Reproduction
    Scientist Walter Sutton pointed out the interrelationships between cytology and Mendelism, closing the gap between cell morphology and heredity.
  • Proteins in DNA

    Proteins in DNA
    Scientist Erwin Chargaff discovered a one-to-one ratio of adenine to thymine and guanine to cytosine in DNA samples from a variety of organisms.
  • Three-Dimensional DNA Model

    Three-Dimensional DNA Model
    Francis Crick and James Watson are able to create a 3-dimensional model of the DNA moleculte.
  • Genetic Cloning

    Genetic Cloning
    Dolly the Sheep is cloned; the first time that any living being had been cloned through genetics and it occurred as the result of over three centuries of combined research efforts.