Mitosis and Meiosis

State the role of cell division in unicellular organisms. Give an example of such a process.

Mention 3 reasons why multicellular organisms undergo cell division.

Mitosis produces _ cells. They are diploid cells.

Meiosis produces _. These are haploid cells.

Briefly present an overview of mitosis. [Hint: conserves the chromosome number of the
cells].

Where are gametes produced? [gonads]

Briefly describe the process of fertilization. Include the following in your answer: haploid
cells, zygote, gamete, diploid.

Define cancer

_ results in 2 genetically identical daughter cells.

Mention all the stages of the cell cycle and briefly state what happens in each phase. [hint:
GSGM]

Which phases of the cycle does interphase comprise?

Which processes in the cell cycle does the mitotic phase comprise? [hint: mitosis and
cytokinesis]

What are the steps in mitosis? [5]

Cytokinesis is part of mitosis. True/false?

𝐺0 is also known as the _ phase.

The quiescent phase is also called the resting phase. This is because non dividing cells are at
unrest. True/False?

State the circumstances under which/ the reasons why cells move from 𝐺0 to 𝐺1 vice versa.

At which cell cycle phase do the cells prepare for DNA replication?

There are dividing cells instead of non-dividing cells in the 𝐺0 phase. True/False?

Define cytokinesis.

Which two types of signals facilitate cell cycle control? Give examples of each signal.

State the three types of cells. Answer in line with the cell cycle and cell division potential/
[hint: post mitotic cells, cells that divide under appropriate stimulation & cells with mitotic
activity]

Post mitotic cells have the ability to replicate. Hence, they are permanently arrested at 𝐺0
phase. What is true/false about this statement.

Neural cells, cardiac muscle. Cells and red blood cells are examples of _-mitotic cells.

Most of the cells in our body divide upon appropriate stimulation. Give an example of this.
[lymphocytes x antigenic presentation]

Germ cells, stem cells and epithelial cells are examples cells with high _ activity.

Which phase of cell cycle is the largest? [interphase/mitotic phase]

Outline the two prerequisites for cell division during interphase. [hint: cell component
replication & chromosomal replication]