variation/ genes,chromosomes and DNA Flashcards
1
Q
what is genetic variation?
A
genes inherited by your parents
e.g. eye colour, hair colour, blood group and inherited disorders e.g. cystic fibrosis
2
Q
what is environmental variation?
A
the organisms that live and grow round you cause variation
e.g. loosing any limbs throughout your lifetime,
3
Q
where is your genetic material ‘kept’?
A
in the nucleus of your cells, in the form of chromosomes
4
Q
what are chromosomes?
A
chromosomes carry genes, there are 23 pairs of them.
5
Q
what are genes?
A
a short length of the chromosome
6
Q
what is DNA?
A
coiled up ‘arms’ of the chromosomes/genes
