Structure of DNA 1.1 Flashcards
1
Q
What is the DNA molecule composed of
A
Two chains of nucleotides
2
Q
What are DNA nucleotides composed of
A
Phosphate, deoxyribose sugar and a base
3
Q
What are the 4 bases of a DNA molecule
A
Adenine, Thymine, Guanine and Cytosine
4
Q
How are nucleotides in a chain joined
A
Sugar-phosphate bonds
5
Q
What are long chains of nucleotides called
A
Polynucleotides
6
Q
Why is DNA anti-parallel
A
One side goes from 5’ to 3’ and the other goes from 3’ to 5’
7
Q
What joins the bases in DNA together
A
Weak hydrogen bonds
8
Q
A
