study guide 4.1 Flashcards
(10 cards)
1
Q
what was Griffith researching in his experiment?
A
pneumonia
2
Q
Was the transformation factor able to be determined after Griffith’s experiment?
A
no
3
Q
What were the two possible factors after Avery’s experiment?
A
RNA and DNA
4
Q
What did Hershey and chase do in the experiment?
A
used radioactive isotopes to determine the transferring facor
5
Q
name one thing determined from Watson and Crick’s x-ray
A
phosphates must be on the outside of the DNA
6
Q
how many strands is DNA composed of?
A
2
7
Q
What number prime is close to the phosphate group?
A
5 prime
8
Q
how many rings does pyrimidine have?
A
2 rings
9
Q
What type of bond holds nucleotides together?
A
hydrogen
10
Q
Are the covalent (backbone) or hydrogen bonds more easily broken?
A
hydrogen
