DNA Scientist & Structure Flashcard

Front

What bases bond together in a DNA molecule?

Back

A - T, G - C

Front

Who are credited with discovering the double helix structure of DNA?

Back

Watson and Crick

Front

Which scientists demonstrated that bacteriophage viruses inject their DNA into bacteria?

Back

Hershey and Chase

Front

Who used the percentage of nitrogenous bases in DNA to determine base pairing?

Back

Erwin Chargaff

Front

Which scientist used X-ray diffraction to help determine the shape of DNA?

Back

Roseland Franklin

Front

What is the structure of DNA?

Back

A double helix composed of two strands of nucleotides.

Front

What are the four nitrogenous bases in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), Guanine (G).

Front

What is Chargaff's rule?

Back

In DNA, the amount of adenine equals thymine, and the amount of cytosine equals guanine.

Front

What is the significance of the double helix structure of DNA?

Back

It allows for the replication and storage of genetic information.

Front

What role do hydrogen bonds play in DNA structure?

Back

They hold the two strands of DNA together by bonding complementary bases.