Hyy everyone......
Can you give some important points on meiosis and mitosis.....plzz fast.....i will make u brainliest
Answers
heyy
You started off as a fertilized cell inside your mom, called a zygote. Now, you’re a thriving community of hundreds of millions of cells, all working together towards a common purpose: to keep you alive. How did so many cells come from just one?
Generally speaking, the answer is straightforward: many cells come from just one by repeated cell division. Your first form as a zygote split to make two cells. Then those cells split, making four...and so on and so forth, until you became the living, functioning organism you are today.
There are two ways cell division can happen in humans and most other animals, called mitosis and meiosis. When a cell divides by way of mitosis, it produces two clones of itself, each with the same number of chromosomes. When a cell divides by way of meiosis, it produces four cells, called gametes. Gametes are more commonly called sperm in males and eggs in females. Unlike in mitosis, the gametes produced by meiosis are not clones of the original cell, because each gamete has exactly half as many chromosomes as the original cell.
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.
Significance of meiosis:
An essential process in all sexually reproducing animals.
Maintain diploidity of zygote (i.e. maintenance of chromosomal number in zygote)
Meiosis show crossing over, resulting in genetic recombination.
Meiosis show increased incidences of mutation (sudden changes in genetic material).
hope it will help!!!