S7L3a Part 1 DNA

Front

Who used x-ray diffraction to get the exact three-dimensional structure of the DNA molecule?

Back

Franklin

Front

Which of the following units are repeatedly joined together to form a strand of DNA?

Back

Nucleotides

Front

Which 2 molecules form the sides (backbone) of the DNA ladder?

Back

Deoxyribose (sugar) and phosphate

Front

Nitrogenous bases are joined by which type of bond?

Back

Hydrogen bonds

Front

Who used x-ray images from Rosalind Franklin to confirm the sugar, phosphate, and base combination called double helix?

Back

Watson & Crick

Front

What is the basic unit of DNA?

Back

Nucleotide

Front

What are the four nitrogenous bases found in DNA?

Back

Adenine, Thymine, Cytosine, Guanine

Front

What is the shape of the DNA molecule?

Back

Double helix

Front

What type of bond connects nucleotides in a DNA strand?

Back

Covalent bonds

Front

What is the role of the sugar-phosphate backbone in DNA?

Back

It provides structural support and stability to the DNA molecule.