Interphase Flashcards
1
Q
what is the G1 phase ?
A
proteins required for organelles are synthesised
2
Q
what is the s phase?
A
Dna replication takes place, resulting in the double mass of DNA in the cell
3
Q
what is the G2 phase?
A
organelles grow and divide, energy reserves and increases
3
Q
what three steps is the interphase composed of?
A
- G1 phase
- S phase
G2 phase
4
Q
what is mitosis ?
A
when the nucleus divides into two
5
Q
what is cytokinesis?
A
- the cytoplasm divides to form two genetically identical daughter cells
6
Q
What order do the stages occur in interphase?
A
- G1phase
- S phase
- G2 phase
- Mitosis
- cytokinesis
7
Q
where do the checkpoints occur?
A
- the end of G1 - before DNA replication occurs
- end of the G2 stage before mitosis begins
- spindle assembly to esnure chromosomes are aligned on the spindle
