What might happen if the gametes of a species had the same number of chromosomes as the species’ body cells?
95313
This happens regularly in the natural world. It's a common cause of what is referred to as polyploidy.\n\n"Polyploidy has occurred often in the evolution of plants.\nThe process can begin if diploid (2n) gametes are formed. These can arise in at least two ways.\n\n    * The gametes may be formed by mitosis instead of meiosis.\n    * Plants, in contrast to animals, form germ cells (sperm and eggs) from somatic tissues. If the chromosome content of a precursor somatic cell has accidentally doubled (e.g., as a result of passing through S phase of the cell cycle without following up with mitosis and cytokinesis), then gametes containing 2n chromosomes are formed."\n\n\nIf you are looking for someone to do your homework for you, as I suspect, then think again. I will suggest that you think about what will happen if this continues every genertion. That's the answer your teacher wants.
108459
An egg, and a sperm both contain a nucleus which holds half of our DNA (23 chromosomes). All of our other cells contain 46 Chromosomes. In the lab, they harvest an egg from which ever species they are cloning, and they remove the nucleus. They can then take the nucleus of a normal 46 chromosome cell and put it inside the egg- where it's nucleus used to be. The egg then "thinks" it is fertilized and will start to divide, and grow. This embryo is an exact replica of the parent cell. Cloning is a form of asexual reproduction, because sex was not involved in the creation of the new embryo. There are many ethical issues surrounding cloning. Some argue that scientists are "playing God" because they are creating new life. Some say that if a human were to be cloned- it would have no soul because it was not created by God. There are too many ethical issues to type here, but you get the idea. You'll have to decide for yourself where you stand. Hope this helps. good luck in school
924883
When the body cells mutate, the mutation only affects that organism. It will not be passed on to future generations.\nIf the sex cell mutates, that mutated trait could be passed on to offspring and they could pass it along to their offspring and so on.
839769
Meiosis is specialized cell division (similar to mitosis). Mitosis results in 2 identical daughter cells from a single cell. Meiosis results in 4 daughter cells (which may not be identical) but each daughter cell only has one set of chromosomes, instead of the 2 sets of chromosomes present in the original cell. Each of these daughter cells is called a gamete. In sexual reproduction a male gamete and a female gamete (sperm and egg) fuse. Each contributes a single set of chromosomes so the resulting fused cell (zygote) has two sets like the cells that originally formed the gametes.
868417
Well, for one, reproduction would be no fun:  no sex.  \n\nFor another, biodiversity would be almost nonexistent because when cells reproduce asexually they produce carbon copies of themselves.  So if I were to asexually reproduce I would end up with a child whose only difference from me would be its age.  It might even be the same size as me, since the result of mitosis is two identically sized cells.
866248
Mitosis produces two cells which are genetically identical to the original one. There is no exchange of genes between two organisms, and so mitosis is a type of asexual reproduction.
230124
Humans have 23 unique chromosomes (called the haploid number) Each one of the chromosome is different from the all the others (unique). \nHowever we have two copies of each type of chromosome hence making 2x23=46 chromosomes called the diploid number).\nHomologous chromosome or homologs as you refer to them are the pair of chromosomes which are of the same type, and in normal humans there are always TWO of each type. Therefore the number of homologs or pairs of same chromosomes is the same as the haploid number of chromosomes i.e. 23 in normal human beings.\nAn autosome is any chromosome that is not a sex chromosome (i.e. neither a Y nor an X chromosome)
716212
normal cell has 23 pairs of chromosomes (46 chromatids)\nbefore mitotic division the number doubles to 46 pairs (92 chromatids) the chromosomes are arranged as sister chromatids joined by the centromere and aligned with their copies (this is where recombination events can take place). the pairs are then pulled apart and separated in to the two new cells (each with 23 pairs). \n\nNote: for meiotic division (production of gametes (sperm and egg)) 23 pairs of chromosomes are divided in to 2 lots of 23 single chromosomes.
761309
Homologous chromosomes are chromosomes in a biological cell that pair (synapse) during meiosis, or alternatively, non-identical chromosomes that contain information for the same biological features and contain the same genes at the same loci but possibly different genetic information, called alleles, at those genes. For example, two chromosomes may have genes encoding eye colour, but one may code for brown eyes, the other for blue.\n\nNon-homologous chromosomes representing all the biological features of an organism form a set, and the number of sets in a cell is called ploidy. In diploid organisms (most plants and animals), each homologous chromosome is inherited from a different parent. But polyploid organisms have more than two homologous chromosomes.\n\nHomologous chromosomes are similar in length, except for sex chromosomes in several taxa, where the X chromosome is considerably larger than the Y chromosome. These chromosomes share only small regions of homology.\n\nHumans have 22 pairs of homologous non-sex chromosomes (called autosomes). Each member of a pair is inherited from one of their two parents. In addition, female humans have a homologous pair of X sex chromosomes; males have an X and a Y chromosome.
888340
When cells undergo meiosis, sometimes the cells divide incorrectly and either, gametes that have abnormal number of chromosomes are formed, or the cell ends up with multiple copies of the genome. Cells that have many sets of chromosomes are said to be undergoing polyploidy. The genetic material has been duplicated and ready for division, but division does not occur, forming a gamete with an extra set of chromosomes.
759601
What species?  There are 23 chromosomes in a *human* sperm cell.\n\nIt is very important to say what species you are talking about, because, say, a dog sperm cell has 39 chromosomes; a cat sperm cell has 19, and so does a pig's; a horse sperm cell has 32; etc.
864367
D.  The egg is a gamete, which contains half the amount of chromosomes that the body cell normally carries.
881220
same place chromosomes split and begin to migrate.\nyou tell me.
865802
Your cells would split without first replicating and dividing your chromosomes.  This would be a major problem because equal copies of your DNA would not go to the correct cells.  This would be a serious mutation and would probably cause a serious illness or even death.
696673
well certain genes on the chromosomes will be transfered to different ones which means the gamits produced in meiosis will have different genes than the parent and it will be a mixed half not a normal half
788311
A whole cell goes through it...including all of the chromosomes.\n\nA sex cell will duplicate its genome so that it has pairs of paired chromosomes...then it splits.  It then splits again so that there are 4 cells that are now haploid which means they only have 23 chromosomes instead of the diploid state of 46...well, for the human genome, anyway.  When two haploid cells(sperm and egg) come together they create a diploid zygote that develops into an embryo.
252661
If it is a diploid (2n) and has 30 chromosomes, then it has 30 chromosoms obviously but one usually addresses these as 15 pairs and not 30 chromosomes. The haploid of this would thus be 15 single chromosomes.