what is miosis and mitosis??
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mitosis:
1.divides to form 2 cells.
2.cell divides only ones.
3.prophase is simple.
4.no synapsis occurs.(synapsis is pairing of homologous chromosomes is called synapsis)
5.no crossing over takes place ( crossing over is exchange of genetic material between 2 homologous chromosomes)
6.chromosomes number remains same at end of division .46 in a cell gives rise to 2 cells containing 46,46 chromosomes.
7.takes place in somatic cells of the body .eg.hair,skin,organ
8.occurs in both sexually and asexually reproducing organisms.
9.mitosis is known as equational division as the daughter cells have the same diploid number of chromosomes as the parent.
10.synaptonemal complex is formed.
Meiosis:1:divides to form 4 cells
2.there are 2 cell divisions
3.prophase is divided into 5parts.
laptotene
zygotene
pachytene
diplotene
diakinesis.
4.synapsis occurs.
5.crossing over takes place.
6.chromosomes number is halved at end of meiosis I.e,4cells containing 23 chromosomes
7.take place in germ cells I.e,sperm ,ovum
8.occurs only in sexually reproducing organisms
9.meiosis 1 is known as reductional division, meiosis 2 is known as equational division.
10.synaptonimal complex is formed during the zygotene stage of prophase 1.
hope this answer is useful to u
1.divides to form 2 cells.
2.cell divides only ones.
3.prophase is simple.
4.no synapsis occurs.(synapsis is pairing of homologous chromosomes is called synapsis)
5.no crossing over takes place ( crossing over is exchange of genetic material between 2 homologous chromosomes)
6.chromosomes number remains same at end of division .46 in a cell gives rise to 2 cells containing 46,46 chromosomes.
7.takes place in somatic cells of the body .eg.hair,skin,organ
8.occurs in both sexually and asexually reproducing organisms.
9.mitosis is known as equational division as the daughter cells have the same diploid number of chromosomes as the parent.
10.synaptonemal complex is formed.
Meiosis:1:divides to form 4 cells
2.there are 2 cell divisions
3.prophase is divided into 5parts.
laptotene
zygotene
pachytene
diplotene
diakinesis.
4.synapsis occurs.
5.crossing over takes place.
6.chromosomes number is halved at end of meiosis I.e,4cells containing 23 chromosomes
7.take place in germ cells I.e,sperm ,ovum
8.occurs only in sexually reproducing organisms
9.meiosis 1 is known as reductional division, meiosis 2 is known as equational division.
10.synaptonimal complex is formed during the zygotene stage of prophase 1.
hope this answer is useful to u
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