The Cell Cycle

Question 1

Interphase

Answer 1

Cell grows and the number of organelles increases. DNA in the nucleus is copied

Question 2

G1 Phase

Answer 2

Grows and develops

Question 3

Synthesis (S)

Answer 3

The cell duplicates its genetic material

Question 4

G2 Phase

Answer 4

Nucleus is well defined, chromosomes condense into chromatids in preparation for cell division, centrosome is replicated

Question 5

G1 Checkpoint

Answer 5

verifies that the cell has grown to the correct size
synthesised enough protein for DNA replication
checks if the DNA has been damaged during mitosis

Question 6

G2 Checkpoint

Answer 6

ensures that DNA has replicated properly in the S phase
checks the cell has enough resources for mitosis

Question 7

Metaphase (M) Checkpoint

Answer 7

checks the formation of the spindle fibres
checks if the chromosomes are lined up in the correct location

Question 8

G0

Answer 8

a stage of the cell cycle where cells are not actively dividing or preparing to divide