The Answer:
The correct answer is option 'A', which states that growth and repair of damaged tissue involve mitotic cell division only.

Explanation:
Growth and repair of damaged tissue are essential processes in living organisms. These processes involve the division of cells to produce new cells, which then replace or repair the damaged or old cells. Mitotic cell division is the primary mechanism through which growth and repair occur in tissues.

Mitotic Cell Division:
Mitosis is a process of cell division that occurs in somatic cells (cells other than reproductive cells) and results in the formation of two daughter cells that are genetically identical to the parent cell. Mitotic cell division is responsible for growth and repair in multicellular organisms. It involves several stages, including interphase, prophase, metaphase, anaphase, and telophase.

Growth:
During growth, mitotic cell division allows for an increase in the number of cells in an organism. This process occurs in various tissues and organs, enabling the organism to develop and increase in size. For example, in humans, mitotic cell division is responsible for the growth of bones, muscles, and organs during childhood and adolescence.

Repair of Damaged Tissue:
When tissue is damaged due to injury or disease, mitotic cell division plays a crucial role in repairing the damage. Injured cells initiate a series of signals that activate the cell cycle, leading to mitotic division. The new cells produced through mitosis replace the damaged or dead cells, restoring the structure and function of the tissue. This process can occur in various tissues, such as skin, liver, and blood vessels.

Other Cell Division Processes:
Meiotic cell division, which involves the formation of gametes (reproductive cells), is not involved in the growth and repair of damaged tissue. Meiosis occurs only in specialized cells in the reproductive organs and is essential for sexual reproduction. It results in the formation of four genetically unique daughter cells with half the number of chromosomes as the parent cell.

Conclusion:
In summary, growth and repair of damaged tissue primarily involve mitotic cell division, which allows for an increase in the number of cells and replacement of damaged or dead cells. Meiotic cell division is not involved in these processes and is specific to the formation of gametes for sexual reproduction.