Life Science - Cell Cycle reveiw

Each human body cell (ex: skin cell) has how many chromosomes?

• 2
• 23
• 46
• 92

Why are mitosis and cell division important to living organisms?

• it allows organisms to grow
• it repairs damaged cells
• it allows some organisms to reproduce asexually
• all of the above

Most of the life of any cell is spent in which stage of the cell cycle shown below?

• interphase
• prophase
• telophase
• anaphase

Which event occurs during interphase?

• the cell grows and copies its DNA
• chromosomes are pulled apart
• chromosomes appear
• chromosomes line up in the middle of the cell

The two main stages of cell division are called ____.

• mitosis and interphase
• telophase and cytokinesis
• metaphase and anaphase
• mitosis and cytokinesis

The structures labeled "B" in the figure below are called ____.

• centromeres
• centrioles
• sister chromatids
• spindles

Which of the following represents the phases of mitosis in their proper sequence?

• prophase, anaphase, metaphase, telophase
• interphase, prophase, metaphase, anaphase, telophase
• interphase, prophase, metaphase, telophase
• prophase, metaphase, anaphase, telophase

The first phase of mitosis is called ____.

• prophase
• metaphase
• anaphase
• interphase

In prophase, each of the following has occurred except ____.

• chromatin condenses and chromosomes appear
• the nuclear envelope breaks down
• centrioles move apart and produce spindle fibers
• chromosomes line up in the middle of the cell

During which phase of mitosis do the chromosomes line up along the middle of the cell?

• prophase
• telophase
• metaphase
• anaphase