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Why does meiosis result in more genetic variation than mitosis?
Wiki User
∙ 13y ago
It would be wrong to consider mitosis insignificant as it helps in cell repair and replacement in our daily life and it would be impossible to survive without it and asexual reproduction as well but if it weren't for meiosis, none of us would have been born :) Meiosis is responsible for the division for our gamete cells which leads to the formation a zygote. from there on mitosis takes over.
Wiki User
∙ 11y ago
Wiki User
∙ 9y agoCells that divide by meiosis are diploid (2n) to start with, but the cells that are formed from meiosis are haploid (n), as the number of chromosones have halved. This therefore requires two stages: meiosis I and II.
Eliana Sandoval
Wiki User
∙ 12y agoMitosis produces daughter cells with the same genetic material as the parent, but meiosis is the precursor to sexual reproduction - and the offspring will end up with half the genetic material of each parent.
The recombination of genetic material involved in sexual reproduction produces a much greater variety than mitosis.
Wiki User
∙ 12y agoMitosis produces genetically identical copies, where as meiosis involves both the mother's X and the father's X or y chromosome combining and going through separation and segregation, so meiosis gives rise to genetically different offspring every time.
Wiki User
∙ 11y agoMeiosis results in genetic diversity because of the crossing over of homologous chromosomes. Because of crossing over, meiosis results in four non-identical daughter cells. Asexual reproduction produces two daughter cells that are genetically identical to the parent cell and each other.
Wiki User
∙ 15y agoMeiosis is a small fraction of the complete mitosis cycle.
Wiki User
∙ 11y agoBecause meiosis results in recombination/crossing-over during gametogenesis, which does not occur in mitosis.
Wiki User
∙ 14y agomitosis is better. trust me.
Wiki User
∙ 13y agocrossing-over happens more in meiosis.
Wiki User
∙ 11y agoNO
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During meiosis crossing-over gene exchange between chromosomes may occur Crossing-over usually results in?
The result of crossing over is genetic diversity. More specifically, it is a hybrid chromosome with a unique pattern of genetic material. Does this answer help?
How does variation occur?
Variation or mutation occurs within the DNA. It is a natural result of the replication process, or the copying of one DNA strand to make new DNA during reproduction. If the new mutation ends up making some kind of variation that does not kill the organism, then the variation will be passed on to new generations. This is how new traits are formed. When the variation is actually more useful than a trait that the organism's parents had, that new variation will be passed along as a survival trait.
When parts of chromosomes are broken off and lost during mitosis or meiosis the result is an?
when parts of chromosomes are broken off and lost during mitosis the results is a chromosomal mutation
A change in the genetic material that produces variation in a species may be the result of?
immigration, mutation and sexual reproduction.
What causes many endangered species that are now found only in zoos to have very little genetic variations?
Founder effect refers to the loss of genetic variation when a new colony is established by a very small number of individuals from a larger population. As a result of the loss of genetic variation, the new population may be distinctively different.Bottleneck effect is an evolutionary event in which a significant percentage of a population or species is killed or otherwise prevented from reproducing, and the population is reduced by 50% or more, often by several orders of magnitude.Population bottlenecks increase genetic drift, as the rate of drift is inversely proportional to the population size.They also increase inbreeding due to the reduced pool of possible mates.
Why are mitosis and mitosis similar?
Because they both result in the formantion of gametes; however there is no genetic variation in meiosis.
Why meiosis 2 is similar to mitosis?
Because they both result in the formantion of gametes; however there is no genetic variation in meiosis.
Genetic variation in bacterial populations cannot result from?
meiosis, Ap BIO
Where do you expect genetic differences between cells to arise from mitosis or from meiosis?
That is a good question. In mitosis, you don't get regular genetic variation but chance mutations can occur. In meiosis with fertilization, you get pairing of DNA from different hosts on a regular basis. I would choose the latter.
Why are meiosis and mitosis similar?
Plant and animal mitotic phases so similar for a few reasons. One reason is that these animals are both living.
Does meiosis have variation?
During meiosis, genetic recombination of homologous chromosomes occurs. So meiosis does result in genetic variation. After prophase I, during which crossing over occurs, every chromosome will have some maternal DNA and some paternal DNA.
Meiosis and fertilization are important processes because they may most immediately result in?
genetic variation
Which is responsible for most genotypic and phenotypic variation among humans 1 meiosis 2 budding 3 mitosis or 4 regeneration?
Budding , mitosis and regeneration have no link with genetic variation.All variations in human being and other organisms are produced by MEIOSIS. During meiosis following important processes take place which include 1; crossing over in Prophase I ; Independent assortment of chromosomes and genes during Metaphase I , both of them result in reshufling of genes which is base of variation. Another source of variation is MUTATION.
Which type of reproduction results in the greatest amount of genetic variation?
That would be sexual reproduction. Sexual reproduction allows for independent assortment and crossing over to occur. This is fancy language for the genetic material gets mixed up a lot. Since the genetic material gets mixed up, variation will result.
What is the end result difference between mitosis and meiosis?
Mitosis = doubling of chromosomes. Meiosis = halving of chromosomes.
Why is variation not possible in mitotic division of cells?
Mitosis does not lead to the formation of chromosomes with new combination. In meiosis as a result of crossing over, chromosomes with new combinations are formed which are responsible for variation.
How does mitosis and meiosis differ in the division of genetic composition?
Upon the process of splitting cells, mitosis means that the cell splits itself into two genetically identical cells. Meiosis stands for two divisions which result into four genetically different cells.
