History
Who was the first person to isolate DNA?
Johann Friedrich Miescher in 1870
What are the four bases in DNA?
adenine
thymine
guanine
cytosine
What shape of structure does DNA make?
Double helix
What helps with DNA repair?
DNA Conformations
What percent of DNA does every human share?
What does DNA stand for?
Deoxyribonucleic acid
What atoms are in DNA?
Carbon, Hydrogen, Oxygen, Phosphorus , and Nitrogen
What is a double helix?
Hydrogen bonds bonding with nitrogenous bases creating a “staircase”.
What does supercoiling do?
Makes rooms for more DNA by “coiling up” other DNA
DNA makes up what of a cell
Genetic Material
Later in 1874, Johann Friedrich Miescher discovered that DNA is the basis of all what?
Basis of all life
What type of bonds are formed in DNA?
Hydrogen bonds
What is the backbone of a double helix?
Sugar and phosphate molecules
Where is a minor groove?
Where the backbones are close together
What is responsible for carrying all the information and organism needs to grow, survive, and reproduce ?
DNA
Name 2 of the bases that Albrecht Kossel discovered DNA is made up of
Adenine, Guanine, Cytosine, and Thymine
What is one non-metal DNA contains?
Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus
What part of DNA is hydrophobic?
The bases; adenine, cytosine, thymine, and guanine
Where is a major groove?
Where the backbones are farther apart
Lesser know molecule but still plays important role in cells.
RNA
What two people discovered the structure of DNA
James Watson and Francis Crick
Do the hydrogen bonds in DNA have high or low melting and boiling points
Both, High melting and boiling points
What part of DNA is hydrophilic?
The sugar and phosphate backbone
Is DNA a single molecule or a pair of molecules?
Pair of molecules
What makes us, us? This thing determines our characteristics and traits.
DNA