2.6 Nucleic Acids Flashcards
1
Q
4 bases in DNA
A
Cytosine, Guanine, Adenine, Thymine
2
Q
Adenine and Guanine
A
Purines (double ring bases)
3
Q
Thymine and Cytosine
A
Pyrimidines (single ring bases)
4
Q
How are nucleotides linked together
A
Linked by single strands via condensation. Covalent bond
5
Q
Where is phosphate group
A
Attached at 5’C ot the sugar
6
Q
Phosphate group joins with…
A
hydroxyl group
7
Q
Where is hydroxyll group
A
Attached at 3’-C of the sugar
8
Q
What bond connects the 2 nucleotides
A
Phosphodiester
9
Q
Bases are bonded with
A
Hydrogen binds
10
Q
Adenine and Thymine have how many hydrogen bonds?
A
2
11
Q
Guanine and Cytosine have how many hydrogen bonds?
A
3
12
Q
How must DNA strand be oriented for bases to bind
A
Anti-parallel
