B1.2.1 - DNA Flashcards
1
Q
Where is DNA?
A
DNA is located in the nucleus of all eukaryotic cells
2
Q
What is a chromosome?
A
Each long molecule of DNA
3
Q
What are the sections of DNA called?
A
Genes
4
Q
How many strands is DNA made of?
A
2 strands that are twisted together
5
Q
What is the structure of DNA
A
A double helix structure, made of 2 strands which are arranged in small sections called genes
6
Q
What are nucleotides made of?
A
Deoxyribose (type of sugar), phosphate and one of 4 bases
7
Q
How many types of nucleotides are there?
A
There are 4 types, due to 4 different bases
8
Q
Name the 4 different bases
A
A/T/C/G
Adenine, Thymine, Cytosine and Guanine
