CB3 DNA Flashcards
1
Q
What are genes, chromosomes and genome all made from?
A
DNA.
2
Q
What shape is a DNA molecule?
A
Double helix.
3
Q
What are the 3 parts of a DNA nucleotide?
A
Phosphate, sugar, base.
4
Q
What are the 4 DNA bases?
A
Adenine, thymine, guanine, cytosine.
5
Q
What DNA base does adenine pair with?
A
Thymine.
6
Q
What DNA base does cytosine pair with?
A
Guanine.
7
Q
What bond is between the complementary DNA base pairs?
A
Hydrogen Bonds.
8
Q
What is the role of the detergent in extracting DNA from cells?
A
It breaks down the cell surface and nuclear membranes.
9
Q
What is the role of cold ethanol in extracting DNA from cells?
A
It causes the DNA to solidify.
