Mitosis & Meiosis

A cell containing 20 chromosomes goes through MITOSIS. What is the end result?

• 2 daughter cells each containing 40 chromosomes

• 2 daughter cells each containing 20 chromosomes

• 2 daughter cells each containing 10 chromosomes

• 4 daughter cells each containing 20 chromosomes

2. A cell containing 20 chromosomes undergoes MEIOSIS. What is the end result?

• 2 daughter cells each containing 20 chromosomes

• 2 daughter cells each containing 40 chromosomes

• 4 daughter cells each containing 10 chromosomes

• 4 daughter cells each containing 20 chromosomes

• A macrophage engulfing bacteria

• A gamete reproducing sexually

• A gamete being produced in the ovary

• An somatic cell replicating itself

Meiosis

• Is a faster version of mitosis

• has more steps than mitosis.

• is just backwards compared to mitosis

• is a shorter version of mitosis

5. The number of chromosomes in most human cells is:

• 23

• 46

• 108

• 92

The cell cycle:

• Is the same length of time for all cells.

• Is when a cell dies.

• Only occurs in bacteria cells

• Is different lengths of time for different types of cells.

Which process normally occurs during meiosis but NOT during mitosis?

• Chromosomes replicate

• Centrosome movement to the poles

• Pairing (synapsis) of homologous chromosomes

• Spindle formation

Which phase of the cell cycle is the longest?

• Telophase – when the cytoplasm begins to separate.

• Metaphase – when the chromatids line up in the center of the cell.

• Anaphase – when sister chromatids separate

• Interphase – when the chromosomes duplicate

Asexual Reproduction is:

• A process that produces genetic variety

• When a new organism is produced from one organism.

• When a new organism is produced from two organisms

• When the chromosomes are copied

Cell division is important because:

• Cells will die if they become too large

• Dead or injured cells need to be replaced

• You need more cells to grow

• All of the above