DNA

• What does DNA serve as for the body?

  A set of instructions
• What are genes responsible for determining?

  Traits such as diseases and hair colour
• What structure does DNA have?

  A double helix structure
• How does DNA vary among individuals?

  All DNA is slightly different between people
• What did Mendel discover about genes by 1900?

  Genes come in pairs, one inherited from each parent
• How did scientists in 1951 understand the inheritance of characteristics?

  They knew characteristics were passed down as children often resemble their parents
• Who took an x-ray to create images of DNA and in what year?

  Rosalind Franklin in 1951
• What significant discovery did Watson and Crick make in 1953 regarding DNA?

  They discovered that DNA was shaped like a double helix
• How did Watson & Crick find out the shape of DNA?

  By using an x-ray.