DNA Structure
What are the three parts of a nucleotide?
Phosphate, sugar, nitrogen base.
What type of intramolecular bonds does water have?
Polar covalent
What scientists won a Nobel prize for modeling the correct structure of DNA?
Watson and Crick
What type of bonds that hold the nitrogenous bases together in a DNA strand?
Hydrogen bonds?
What parts of the subunits of DNA are connected by a phosphodiester bond?
Phosphate to 3' carbon.
What is Nike's signature symbol called?
The swoosh
Who was the scientist that figured out that A and T must bond together and likewise C and G?
Edwin Chargaff
What are the 2 parts of a nucleosome?
DNA and histone
What was demolished to symbolically end the Cold War?
The Berlin Wall
Describe the charge of an oxygen atom in a water molecule.
Partial negative
Where are the smallest bones in the body found?
In the ear
What was the name of the first mission to land on the moon?
Apollo 11
What property of DNA allows it to be replicated accurately?
Complimentary base pairing
What properties of water allow for capillary action?
Cohesion and adhesion
What radioactive isotopes did Hershey and Chase use to label DNA and proteins?
Sulfur and phosphorus
What does it mean that DNA/the genetic code is conserved across species?
All species encode genetic information as DNA and the structure of that DNA is the same.
Extra oxygen atom at the 2' carbon
What property of water stabilizes the temperature of the oceans?
High specific heat capacity
What technology was used by Rosalind Franklin to take the picture of DNA's double helix structure?
X-ray crystallography
If a DNA strand had 40% cytosine, how much adenine would it have?
10%?