chromosomes Flashcards
1
Q
whats in the nucleus?
A
genetic material in the form of chromosomes which are coiled up in lengths of DNA molecules
2
Q
what do chromosomes carry?
A
a large number of genes, different genes control the development of different characteristics (hair colour)
3
Q
what do body cells have?
A
two copies of each chromosomes one of the organisms ‘mother’ and one from the ‘father’
4
Q
how many pairs of chromosomes are in a human cell?
A
23
