Cell cycle

Question 1

What are all the phases of the Cell cycle

Answer 1

G1, S,G2 and mitotic (M) phase

Question 2

What is the function of the G1 phase of the cell cycle?

Answer 2

the cell grows in preparation for DNA replication

Question 3

What is the function of the S phase of the cell cycle?

Answer 3

Replication of DNA (S stands for synthesis)

Question 4

What is the function of the G2 phase of the cell cycle?

Answer 4

prevents cells with damaged DNA, lasting from the G1 and S phases or generated in G2, from undergoing mitosis

Question 5

What are the 5 stages of mitosis?

Answer 5

Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

Question 6

Describe prophase

Answer 6

Chromosomes condense
Nuclear membrane disappears
Spindle fibres form from the centriole

Question 7

Describe Metaphase

Answer 7

Chromosomes aligned at the equator of the cell
Attached by fibre to each centriole
Maximum condensation of chromosome

Question 8

Describe Anaphase

Answer 8

Sister chromatids separate at centromere
They separate longitudinally
Chromatids move to opposite ends of cell

Question 9

Describe Telophase

Answer 9

New nuclear membranes form
Each cell contains 46 chromosomes (diploid)

Question 10

Describe Cytokinesis

Answer 10

Cytoplasm separates