DNA
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What does DNA stand for?
DEOXYRIBONUCLEIC ACID
Where in a cell is DNA located?
Inside the nucleus
What does DNA form when coiled together?
Chromosome
What is a chromatid?
The two strands in a chromosome
What is a centromere?
Where the chromatids are attached together in the centre of the chromosome
What is a gene? Provide an example.
A segment of DNA that contains instructions to build a protein for a specific gene. For example, the colour of someone’s eyes.
Why is the structure of DNA referred to as a double helix?
It has two phosphate backbones and are connected by base pairs (AT & CG). This winds around to form a twisted ladder shape.
A nucleotide is made up of what 3 things?
Ribose sugar, phosphate, nitrogen base
The backbone of a DNA molecule is referred to as what?
A sugar-phosphate backbone
What is the name of the sugar found in DNA
Deoxyribose
What are the name of the four nitrogen bases?
Adenine, Thymine, Guanine, Cytosine
What is the complementary base pairing rule?
A&T C&G