what is the difference between mitosis and meiosis
Answers
Answer:
Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells
Explanation:
Answer :
MITOSIS :
Mitosis occurs in the general body cells or somatic cells.
Mitosis produces two daughter cells by the end of the division.
Mitosis is called as equational division as it maintains the same chromosome number in the daughter cells produced whereas Meiosis is regarded as reduction division as the chromosome number is halved in daughter cells.
SIGNIFICANCE :
1. Helps in growth by multiplication of cells.
2. Helps in repair of the body cells.
3. Helps in ase.xual reproduction in primitive organisms.
4. Mitosis maintains the same chromosome number as of parent cell in daughter cells.
MEIOSIS :
Occurs in the cells of reproductive organs.
Produces 4 daughter cells with haploid number of chromosomes.
Important phenomenon crossing over occurs that results in genetic recombination.
SIGNIFICANCE :
1. Formation of daughter cells with haploid no. of chromosomes which helps in maintaining normal no. of chromosomes in the zygote formed by fusion of gametes.
2. Genetic recombination by meiosis is by two ways : (i) by crossing over in homologous chromosomes. (ii) by random arrangement of maternal and paternal chromosomes in daughter cells.