Chromosomes, Genes And DNA Flashcards
1
Q
How many pairs of chromosomes do humans have?
A
Human body cells have 23 pairs (46 in total) of chromosomes in the nucleus.
2
Q
What does DNA stand for?
A
Deoxyribonucleic acid
3
Q
What is a genome?
A
A genome is the total genetic content of a set of chromosomes.
4
Q
How does DNA work?
A
DNA works by coding for different amino acids which then combine to form protein.
5
Q
Where in the cell is DNA found?
A
In the nucleus
6
Q
Describe the shape of the DNA molecule.
A
Double helix
7
Q
What approach did Watson and Crick use when studying DNA?
A
They used 3D modelling
8
Q
Name the chemical coded for by a length of DNA
A
Protein
9
Q
Give some examples of characteristics that are controlled by genes?
A
Eye colour Skin colour Height Blood type Rolling of the tongue
