DNA Structure and Scientists

Built models to determine that DNA was a double helix shape with base pairs A-T and G-C in rungs between the sugar/phosphate backbone of DNA.

• Watson & Crick

• Franklin

• Wilkins

• Pauling

• Chargaff

Tags

NGSS.HS-LS1-1

Provided clear x-ray crystallography images of DNA

• Watson & Crick

• Franklin

• Wilkins

• Pauling

• Chargaff

Discovered that there was the same amount of A and T in a cell, and C and G in a cell.

• Watson & Crick

• Franklin

• Wilkins

• Pauling

• Chargaff

Worked on DNA imaging techniques and published Franklin's x-ray crystallography image of DNA

• Watson & Crick

• Franklin

• Wilkins

• Pauling

• Chargaff

Using x-ray diffraction to determine the structure of a crystal, such as DNA

• x-ray crystallography

• gas chromatography

• chromatography

• gel electrophoresis

A pair of parallel strands that twist together about an axis

• nucleotide

• double helix

• base pair

• esther bonds

basic structural unit of DNA. Examples: adenine, guanine, cytosine, thymine

• nucleotide

• phosphate

• ribose sugar

• enzyme

5 carbon sugars and phosphates linked together through chemical bonds to provide the structural framework for nucleotides

• chromosome

• nucleotide

• phosphate-sugar backbone

• enzyme

Base pairs (correctly matched)

• A-G and C-T

• A-C and G-T

• A-T and G-C

• C-A and T-G

a piece of a chromosome that is composed of specific nucleotide sequences of DNA

• chromatid

• nucleotide

• gene

• circular DNA

Tags

NGSS.HS-LS1-1