B2 - DNA Flashcards
What does DNA contain?
All the instructions to put an organism together & make it work.
Where is DNA found?
In the nucleus of cells, in long molecules called chromosomes.
What is a gene?
A section of DNA.
What do genes contain?
The instructions to make a specific protein.
How do cells make proteins?
By stringing amino acids together in a particular order.
How many amino acids are used?
20.
What does DNA determine? [2]
What proteins the cell produces, which determines what type of cell it is.
Who’s DNA isn’t unique? [2]
Identical twins or clones.
What is DNA fingerprinting?
Cutting up a persons DNA and separating it, so you can tell people apart by comparing samples.
When is DNA fingerprinting used? [2]
1) forensic science.
2) paternity testing.
What does DNA stand for?
Deoxyribonucleic acid.
