PBS 2.2.5 My, Oh Meiosis

What is the primary purpose of mitosis?

• To initiate the cell's entry into G0 phase

• To ensure the division of the cytoplasm

• To reduce the number of chromosomes in a cell

• To produce two identical daughter cells

During which phase does the cell grow and duplicate its DNA?

• Interphase

• G1 phase

• Anaphase

• M phase

What structure is responsible for organizing the microtubules during mitosis?

• Chromatid

• Cell membrane

• Centrosome

• Nuclear envelope

Which phase is characterized by the alignment of chromosomes in the middle of the cell?

• Prometaphase

• Prophase

• Metaphase

• Telophase

What happens during cytokinesis?

• Cell divides into two daughter cells

• Chromosomes align in the middle

• Chromosomes duplicate

• Nuclear envelope reassembles

What is the main purpose of meiosis?

• To create 46 chromosomes in each cell

• To contribute to genetic diversity

• To produce identical body cells

• To repair damaged cells

What type of cells does meiosis produce?

• Blood cells

• Sperm and egg cells

• Stomach cells

• Skin cells

During which phase does crossing over occur?

• Telophase I

• Anaphase I

• Prophase I

• Metaphase I

How many cells are produced at the end of meiosis II?

• 2 cells

• 4 cells

• 46 cells

• 23 cells

What can cause a cell to receive too many or too few chromosomes?

• Independent assortment

• Crossing over

• Nondisjunction

• Replication