control of gene expression Flashcards
1
Q
what is a gene mutation defined as
A
any change to one or more nucleotide bases or rearrangement of bases
2
Q
what can rate of cell division depend upon
A
environment, but also genes
3
Q
what could happen to cell division if gene mutation occurs
A
the rate of cell division is controlled by genes, if a mutation occurs in those genes then uncontrolled cell divison can occur. CANCER . when these cells keep divided they layer on top of each other forming a tumour
4
Q
what are proto-oncogenes
A
genes that can cause cancer when they are turned on
5
Q
what are tumour suppressor c
A
