The Cell Cycle

Question 1

Mitosis

Answer 1

1. produces 2 daughter cells
2. genetically identical
3. same number chromosomes as parents(diploid)

Question 2

Order of mitosis

Answer 2

1. interphase
2. prophase
3. metaphase
4. anaphase
5. telophase
6. cytokinesis

Question 3

Prophase

Answer 3

1. chromosomes condense
2. chromosomes associate in homologous pairs
3. nucleus breaks down
4. nucleolus disappears
5. nuclear envelope breaks down
6. centrioles move to polar side
7. spindle fibres form

Question 4

Metaphase

Answer 4

1. spindle fibres attach to chromosomes centromere
2. moved to equator of cell

Question 5

Anaphase

Answer 5

1. spindle fibres pull
2. centromere splits
3. homologous chromatids move to opposite poles
4. energy provided by mitochondria

Question 6

Telophase

Answer 6

1. Chromosomes become longer and thinner
2. spindle fibres disintegrate
3. nuclear envelope and nucleolus reform

Question 7

Cytokinesis

Answer 7

1. cytoplasm divides
2. produces 2 genetically identical daughter cells

Question 8

Interphase S

Answer 8

1. DNA semi-conservative replication
2. respiration stores ATP

Question 9

Interphase G2

Answer 9

organelle synthesis
DNA damage repair

Question 10

Interphase G1

Answer 10

1. protein synthesis
2. normal cell function

Question 11

Binary fission

Answer 11

1. chromosomal DNA replicate and attach to cell membrane
2. plasmids replicate
3. cell membrane divides cytoplasm in two
4. cell wall forms between DNA molecules
5. two genetically identical daughter cells produced

Question 12

Meiosis

Answer 12

1. produces 4 gametes
2. genetically different cells
3. haploid chromosomes