Question

explain mitosis cell division​

Answer 1

Answer:

Mitosis cell division​:

Explanation:

Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus. Mitosis is conventionally divided into five stages known as prophase, prometaphase, metaphase, anaphase, and telophase. While mitosis is taking place, there is no cell growth and all of the cellular energy is focused on cell division.

During prophase, the replicated pairs of chromosomes condense and compact themselves. The pairs of chromosomes that have been replicated are called sister chromatids, and they remain joined at a central point called the centromere. A large structure called the mitotic spindle also forms from long proteins called microtubules on each side, or pole, of the cell.

Answer 2

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Mitosis Cell Division  :  

I. It takes place in somatic cells .

II. Mitosis is equational phase  

III. Two daughter cells are produced by the division of a parent cells .

IV. All daughter cells are identical .

V. Number of chromosomes in daughter cells remains same as that of parent cell.

VI. Mitosis is asexual reproduction and diaploid  

VII. Germ cell is absent  

VIII. Prophase is simple .

IX. There is no exchange of genes or crossing over.

X. least contribute in organic evolution .

XI. Mitosis have three event in divide – 1] Interphase 2] Karyokinesis 3] Cytokinesis  

Significance of mitosis :  

• In multicellular organisms , mitosis is responsible for the growth and development.

• This is the main method of reproduction in some living organisms  

• In multicellular organisms regeneration and repair etc take place due to mitosis division .

• By the division , the genetic characters of a species remain same generation after generation.