If meiosis did not occur then the chromosome number would double each generation, and the cell could not survive with this increasingly larger number of chromosomes.
There would be a variety of repercussions within the species in question, especially much less, if any, genetic variation, which is important for survival and adaptation.
There will be no reproduction
the process of cell division in sexually reproducing organisms that reduces the # of chromosomes in reproductive cells
Meiosis occurs when diploid cells produce haploid daughter cells and takes place in sexually reproducing organs.
it becomes extinct
The individual would not be able to reproduce sexually.
Meiosis is the cell division of two daughter cells that are identical to the parent cell. Meiosis happen in organisms such as plants.
No, humans are born naturally variant. Through independent orientation of chromosomes and crossing over in meiosis through random fertilization matching gametes, both male and female, to random mutation all sexually reproducing species are variations. Asexual species also mange to vary through mutational events that happen often enough for variation to be assured.
By simple genetic recombination for one. microevolution is just evolution and evolution is the change in allele frequency over time in a population of organisms. Just change over time short of speciation and especially valid for sexually reproducing organisms who always change allele frequencies through coitus and reproduction.
meiosis occurs in organisms so that they can reproduce sexually, its a process of cell division during which the nucleus divides into four nuclei, each of which contains half the usual number of chromosomes. and it occurs in both males and females
DNA is copied in meiosis 1.
DNA is copied in meiosis 1.
During the tetrad stage, the metaphase I of meiosis starts to happen. When this occurs, the diploid meiocyte divides twice.