Significance of cell cycles:

Mitosis and meiosis both involve cells division to make new cells. This makes them both vital processes for the existence of living things that reproduce sexually. Meiosis makes the cells needed for sexual reproduction to occur, and mitosis replicates non-sex cells needed for growth and development. Together, they provide the cellular basis for healthy growth and sexual reproduction.

Significance of mitosis: →

• Mitosis is important for sexual reproduction indirectly.
• It allows the sexually reproducing organism to grow and develop from a single cell into a sexually mature individual.
•  It maintains the number of chromosomes in new cells so, called equational division. Important for growth and multiplication of cells.
• Plays a significant role in would healing, regeneration of damaged parts, etc.
•  May give rise to tumour or cancerous growth if the process goes out of control.

 

Significance of meiosis: →

• It produces a great diversity of organisms by creating variations in sexual reproduction.
• Also help in evolution.
• It reduces the number of chromosoms half its value in parents with new combinations so, called reductional division.

 

significance of meiosis-1:

• It makes the number of chromosomes haploid in daughter cells.
• Crossing over and disjunction leads to variations that support life and chances of survival.

Significance of meiosis-2:

• It is actually not as meiosis, because it only occurs in haploid cells.

Daughter cells formed are not similar to each other and also not similar to parent cells.