DNA Structures 1+2 Flashcards
1
Q
What is primary structure of DNA
A
String of nucleotides joined together by phosphodiester linkages
2
Q
Secondary structure of DNA
A
3D structure, double helix
3
Q
GC and AT Have how many hydrogen bonds
A
GC has 3 and AT has 2
4
Q
What is a palindrome
A
Interested repeat that is complementary to itself
5
Q
What is the hairpin and stem structure
A
Pairing between based on the same nucelotide strand
6
Q
What forms cruciform structure
A
Palindromes on the same strand
7
Q
What bases are most methylated in bacteria and eukaryotes
A
Bacteria - adenine and cytosine
Eek - cytosine
8
Q
Series of four or more AT base pairs can cause DNA to do what
A
Bend and affect gene expression
9
Q
Deoxyribose and nitrogenous base is what
A
Nucleoside
