Explain why haploid cells need to be produced during a life cycle which includes sexual reproduction.?

Question

Thanks!

Answer 1

Sexual reproduction involves the fusion of gametes. If the gametes (egg and sperm) were not haploid, the new individual would have too many chromosomes. By having haploid (1n)gametes, sexual reproduction restores the diploid number (2n).

Answer 2

In simplest form: The only human haploid cells are the eggs and sperms (the gametes). Every other human cell is diploid, including the cells in the reproductive organs that make the eggs and sperms. In humans, n = 23. The haploid number is 23. It's the number of different kinds of chromosomes we have. In humans, 2n=46. The diploid number is 46. It's the number of chromosomes we have in each cell since we have two of each kind.

Answer 3

As said by R L A, if diploid cells are produced instead of haploid cells, the chromosome number will increase by 2x after each generation, For e.g, n to 2n to 4n to 8n and so forth. This will result in abnormalities (alien?)

So the haploid cells are produced to ensure the chromosome number remains the same after each generation.

Answer 4

First of all i didn't understand your question exactly, but from what i understood, the haploid cell of a male (a.k.a. male gamete, sperms) complete their meiosis (division producing 4 cells with half the number of chromosomes) before they are engaged in fertilization. On the other hand, we need sexual reproduction (fertilization) as a phase in female gametes (ova) production. The ova start their division and stop at one stage of division. They stay dormant until fertilization starts, which in turn stimulates (by secreting appropriate substances) and promotes the ova to continue its meiosis.

Hope this answers your question.

Answer 5

because it is needed for evolution of species. if these cells, ceased, species would not exist.