Genes, Chromosomes and DNA Flashcards
0
Q
2) how many pairs of chromosomes does a human cell nucleus contain’
A
23 pairs
1
Q
1) what’s the nucleus ?
A
Most cells in your body have a nucleus. The nucleus contains your genetic material in the form of chromosomes.
2
Q
3) what do chromosomes carry?
A
Genes. Different genes control the development of different characteristics, eg. Hair colour
3
Q
4)what is a gene?
A
A gene is a short length of the chromosome…. Which is quite a long length of DNA.
4
Q
5) what is DNA?
A
DNA is coiled up to form the arms of the chromosome.
5
Q
What are alleles ?
A
Different versions of the same gene
