Cell Division Type I - MITOSIS

 Types of cell Division :-

1.      MITOSIS

2.      MEIOSIS

MITOSIS:-( Equational division )

• Mitosis cell division was 1^st observed by Walther Flemming in animal cell.
• It helps in the growth of the organisms by increasing in their size ,shape and volume hence its ak “growth division’’
• It occurs in somatic cell so it also called as “somatic cell division’’

The cell cycle is divided into two phases:

1. Interphase

2.  M phase (mitosis phase)

•       Karyokinesis =nuclear division
•       Cytokinesis=Division of cytoplasm

Significance of mitosis:

• Maintains nucleo-cytoplasmic ratio between parent and daughter cells.
• Maintains qualitative and quantitative ratio of genetic material b/w parent cell & daughter cell.
• Helps in growth of multicellular organisms.
• Helps in reproduction of unicellular organisms.
• Brings about regeneration of lost body parts in some animals.
• Helps in repairing injured cells.
• Brings about replacement of dead cells by new cells.
• Maintains haploid and diploid nature of cells.