Test #3- DNA&RNA Flashcards
(8 cards)
1
Q
Who came up with DNA?
A
Watson and Crick
2
Q
What was experiment #1?
A
Griffith-1928
TRANSFORMING factor–mouse
- smooth–infectious
- rough– non-infectious
3
Q
What was Experiment #2?
A
Avery et al- 1944
-isolated RNA and DNA from S cells
4
Q
What was Experiment #3?
A
Hershey and Chase-1952
- BACTERIOPHAGE
- DNA carries its information in a convenient suitcase
5
Q
What was experiment #4?
A
Roaslind Franklin
-X-ray crystallography
6
Q
Which ATGC are purines and which are pyrimidine?
A
A,G-purine (2 chunks)
T,C-pyramidine (1 chunk)
7
Q
What is the difference in RNA sugar?
A
has a U instead of a T
- it is single stranded
- anti-parallel
8
Q
What is Meselson and Stahl?
A
alternate models of DNA
- conservative
- semiconservative **
- dispersive
