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How meiosis maintain a constant number of chromosome within a species?
Wiki User
∙ 14y ago
Meiosis creates gametes (sperm and ova/eggs) which are involved in sexual reproduction. The result of meiosis is cells with half the number of chromosomes as a somatic (non-sex) cell. This ensures that when the gametes join during sexual reproduction, the resulting organism has the correct number of chromosomes (half from each gamete). Thus meiosis maintains the chromosome number.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoDuring meiosis the cell splits up by different phases, the chromosomes will split apart, but the spindles on making two new cells will recreate the same chromosome as the other. Go to www.cellsalive.com then search and look for mitosis and meiosis cell phases, they should be able to tell you what they do.
Wiki User
∙ 12y agoYes, if there are no errors in chromosome separation, the chromosome number is conserved in mitosis. The daughter cells will have exactly the same number and types of chromosomes as the mother cell.
Wiki User
∙ 11y agothe gamates each have half the number of chromosome in the species
Wiki User
∙ 13y agodue to the pressence of the body or somatic cells
Wiki User
∙ 11y agoMeoisis makes sure that the gametes each have half the number of chromosomes as the parents. When they combine, the new cell will now have the same number of chromosomes as its parents
Wiki User
∙ 10y agoBy duplicating the chromosomes during S phase of interphase. This way, when the chromosomes split during metaphase, each daughter cell has the copy.
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How does the alternation of meiosis and fertilization in the life cycles of sexually reproducing organisms maintain the normal chromosome count for each species?
Simple, Meiosis reduce the chromosome number in half while fertilization doubles the chromosome number. n=chromosome number Meiosis = 2n (primordial germ cells) ----> n (sperm cell/egg cell/polar bodies) Fertilization = sperm (n) + egg (n) ----> 2n (zygote)
Does meiosis reduce chromosome numbers?
Yes - the daughter cells produced in meiosis (gametes) have half the number of chromosomes as those in the original cell. This is why meiosis is referred to as 'reduction division'. However, as meiosis produces cells which are involved in sexual reproduction - the chromosome number in the species remains constant. This is because when the two gametes combine, the resulting organism has the correct number of chromosomes (half from each gamete).
Polyploid speciation occurs through?
Polyploidy is to have two copies of each chromosome, itâ??s important in crossbreeds to allow reproduction. Polyploidy speciation requires altering a chromosome number; itâ??s more common in plant species.
Do the sex cells produced by meiosis have twice the number of chromosomes as the parents cells?
The number of chromosomes in a parent cell changes depending on the species.
What do gametes do to maintain the chromosome number of an organism?
Hi friends! Most of the species reproduce sexually. In sexual reproduction, both male and female gametes are involved. In order to maintain the number of chromosomes in offsprings, sex cells in parents undergo meiosis, which reduces the chromosomal number to half. For instance, we take human sex cells with 46 chromosomes undergo miosis, and produce 4 haploid daughter cells having 23 chromosomes each. Now, the question is how meiosis reduces the chromosomal number to half.In meiosis’ different stages, homologous pair of chromosome and non-sister chromatids segregate,leaving daughter cells with only 23 chromosomes(half no. of chromosomes) known as gametes;male gamete=sperm,female gamete=ovum. Fusion of male and female gametes to form a zygote, is known as fertilization. When sperm fertilizes an egg, conception occurs in mother womb with a zygote having 46 chromosomes (receiving 23 chromosomes from each parent)which gradually develops into a fetus and then offspring not identical to parents but with the same no. of chromosomes as parents do have.
Both meiosis and fertilization are essential to maintain chromosome number constant .why?
Total number of chromosomes remain same in same species of organism through meiosis process. In meiosis process the number of chromosomes are reduced to half as a result in gametes only one set of chromosomes will be present. In this process chromosomes are same.....
How does the alternation of meiosis and fertilization in the life cycles of sexually reproducing organisms maintain the normal chromosome count for each species?
Simple, Meiosis reduce the chromosome number in half while fertilization doubles the chromosome number. n=chromosome number Meiosis = 2n (primordial germ cells) ----> n (sperm cell/egg cell/polar bodies) Fertilization = sperm (n) + egg (n) ----> 2n (zygote)
How does the alternation of Meiosis and fertilization in the life cycle of sexually reproducing organisms maintain normal chromosome count for each species?
Simple, Meiosis reduce the chromosome number in half while fertilization doubles the chromosome number. n=chromosome number Meiosis = 2n (primordial germ cells) ----> n (sperm cell/egg cell/polar bodies) Fertilization = sperm (n) + egg (n) ----> 2n (zygote)
Does meiosis reduce chromosome numbers?
Yes - the daughter cells produced in meiosis (gametes) have half the number of chromosomes as those in the original cell. This is why meiosis is referred to as 'reduction division'. However, as meiosis produces cells which are involved in sexual reproduction - the chromosome number in the species remains constant. This is because when the two gametes combine, the resulting organism has the correct number of chromosomes (half from each gamete).
Polyploid speciation occurs through?
Polyploidy is to have two copies of each chromosome, itâ??s important in crossbreeds to allow reproduction. Polyploidy speciation requires altering a chromosome number; itâ??s more common in plant species.
What is the chromosome number?
The original cell (before meiosis occurs) will have a chromosome number of 2n. After meiosis, the resulting daughter cells will have a chromosome number of n. So the daughter cells will have half the number of chromosomes as the original cell. For example, a normal somatic (non-sex) human cell will have 46 chromosomes. Each gamete (the result of meiosis) will therefore have 23 chromosomes.
Do the sex cells produced by meiosis have twice the number of chromosomes as the parents cells?
The number of chromosomes in a parent cell changes depending on the species.
Is a hinny sterile?
Chromosome numbers are different that is why they cannot go under meiosis and can't produce offspring. It is known as interspecific (between two species) hybrid . They are sterile some examples-Mules,Hinny
How is meiosis benificial to the evolution of a species by natural selection?
Meiosis produces new varieties .
What process decreases species diversity?
Meiosis
What does meiosis produce in gamete?
Meiosis produces gametes which have only one set of chromosomes for that species.
What does gametic meiosis produce?
Meiosis produces gametes which have only one set of chromosomes for that species.
