BCH 5413: 1-4 EXAM PREP WITH
COMPLETE SOLUTION
What did Avery, McLeod, and McCartney do? - =They showed that if DNA is present, the non-
pathogenic R-strain bacteria would transform into an S-strain.
What did Wilkins and Franklin do? - =Using xray crystallography, they examined the structure of
DNA.
One turn of a DNA helix is ____ angstroms. - =34
Ribose differs from deoxyribose by a single
a) C
b) H
c) OH
d) P - =c)
How many carbons are in purines and pyrimidines? - =9 and 6
Covalent bonds are found in ____ and hydrogen bonds in ____. - =sugar phosphate backbone,
complimentary base pairing
How many hydrogen bonds are between thymine and adenine? - =2
Name 3 characteristics of B-DNA - =* Right-handed helix
* 10bp per helical turn
* Major groove wide and deep
COMPLETE SOLUTION
What did Avery, McLeod, and McCartney do? - =They showed that if DNA is present, the non-
pathogenic R-strain bacteria would transform into an S-strain.
What did Wilkins and Franklin do? - =Using xray crystallography, they examined the structure of
DNA.
One turn of a DNA helix is ____ angstroms. - =34
Ribose differs from deoxyribose by a single
a) C
b) H
c) OH
d) P - =c)
How many carbons are in purines and pyrimidines? - =9 and 6
Covalent bonds are found in ____ and hydrogen bonds in ____. - =sugar phosphate backbone,
complimentary base pairing
How many hydrogen bonds are between thymine and adenine? - =2
Name 3 characteristics of B-DNA - =* Right-handed helix
* 10bp per helical turn
* Major groove wide and deep
