10.1: A Brief History of Genetics

The study of DNA and inheritance patterns

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Discovered DNA has 4 nitrogen bases, and there are patterns in the amount of each nitrogen base

• Chargaff

• Watson and Crick

• Hershey and Chase

• Mendel

Used X-Rays to discover that DNA has a helix shape

• Chargaff

• Watson and Crick

• Hershey and Chase

• Franklin and Wilkins

Discovered DNA has a double helix

• Chargaff

• Watson and Crick

• Hershey and Chase

• Franklin and Wilkins

Discovered nitrogen bases are paired together the same way every time

• Chargaff

• Watson and Crick

• Hershey and Chase

• Franklin and Wilkins

Adenine pairs with...

• Thymine

• Guanine

• Cytosine

• Adenine

Guanine pairs with...

• Thymine

• Guanine

• Cytosine

• Adenine

Cytosine pairs with...

• Thymine

• Guanine

• Cytosine

• Adenine

Thymine pairs with...

• Thymine

• Guanine

• Cytosine

• Adenine

Worked with bacteria to discover that proteins are not genetic material and are not passed from parent to offspring

• Chargaff

• Watson and Crick

• Hershey and Chase

• Franklin and Wilkins

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