IB Biology Cell and Nuclear Division

What is being separated in mitosis?

• Homologous chromosomes

• Sister chromosomes

• Meiosis

• Ribosomes

Tags

NGSS.HS-LS1-4

What phase of mitosis is this?

• prophase

• metaphase

• anaphase

• telophase

Tags

NGSS.HS-LS1-4

What phase of mitosis is this?

• prophase

• metaphase

• anaphase

• telophase

Tags

NGSS.HS-LS1-4

What phase of mitosis is this?

• prophase

• metaphase

• anaphase

• telophase

Tags

NGSS.HS-LS1-4

A cell sample has the following cell counts

Interphase 5

Prophase 1

Anaphase 1

Metaphase 2

Telophase 1

What is the mitotic index?

• 10%

• 20%

• 40%

• 50%

Tags

NGSS.HS-LS1-4

What do cyclins regulate?

• cancer

• mitosis

• the cell cycle

• seasons

Tags

NGSS.HS-LS1-4

What occurs in meiosis but NOT mitosis

• crossovers between homologous chromosomes

• crossovers between sister chromatids

• spindle formation

• chromosome number is conserved

What process occurs in BOTH mitosis and meiosis

• crossovers in prophase I

• separation of sister chromatids

• anaphase II

• division of two genetically identical nuclei

What does mitosis do?

• regulates the cell cycle

• promotes spindle formation

• suppresses cancer

• results in the division of two genetically identical nuclei

Tags

NGSS.HS-LS1-4

During which part of the cell cycle does DNA replication occur?

• G1

• S

• G2

• M