100 DNA History Spring 2025

Front

The structure of DNA was discovered in _____________.

Back

1953

Front

Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.

Back

DNA

Front

Who proposed the first model of the structure of DNA that turned out to be wrong?

Back

Linus Pauling in California

Front

Rosalind Franklin discovered DNA was ________________.

Back

spiral

Front

Watson and Crick were the first to suggest that DNA is _____

Back

the shape of a double helix

Front

What is the shape of DNA?

Back

Double helix

Front

What are the building blocks of DNA?

Back

Nucleotides

Front

What are the four nitrogenous bases in DNA?

Back

Adenine, Thymine, Cytosine, Guanine

Front

What is Chargaff's rule?

Back

In DNA, the amount of Adenine equals Thymine and the amount of Cytosine equals Guanine.

Front

Who is known for the X-ray diffraction images of DNA?

Back

Rosalind Franklin