0
There are three sources of genetic variation in meiosis: 1) Independent assortment = like shuffling a deck of cards and dealing out half the deck 2) Crossing over = homologous chromosomes swap parts, making new combinations 3) Random fertilization = only one sperm cell makes it into the egg
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoI will try to explain it now, simple and easy...
- During meiosis,the chromosomes first copy themselves.
- Later, the homologous chromosomes meets at the middle of the cell and this is where the chromosomes are trading GENES. This is one cause of why it is a genetic variability within a population.
- Then they would be separated into two cells, and separated once again so it occur a total of four cells. The chromosomes are now completely restocked. As you probably know, there are double set of chromosomes which has a little to no difference. It is completely random which of those two chromosomes are selected during the meiosis.
- These four cells have different chromosomes and when you "make children" it is completely random which sperm-cell that reaches the egg.
- When this sperm-cell meets the eggcell, it get mixed up and a new baby is born which is different from its parents even though you can see some similarities :)
I am not that good in English, but I hope you understand my explanation :)
Wiki User
∙ 13y agoMeiosis increase variation because there occurs crossing over in pachytene stage of meiosis I.
Wiki User
∙ 9y agoGenetic variability is generated during meiosis by crossing over by chiasma formation.
Wiki User
∙ 12y agothe parent cells slpit
Add your answer:
Earn +20 pts
Meiosis and fertilization are important processes because they may most immediately result in?
genetic variation
An advantage of sexual reproduction is?
An advantage of a sexual reproduction is that it is able to produce more offspring because of the mate. Children are different from the parents and more genetic variation species.
What is genetic variability?
Genetic variability is the tendency of individual genetic characteristics in a population to vary from one another.
What is the advantage of meiosis over binary fission?
the benefit of meiosis is that there is genetic recombination hence, helps in variation of characters .that is the reason why children are SIMILAR to their parents but DO NOT look like them completely.
What happens during synapsis in meiosis?
The purpose of synapsis in meiosis is to increase genetic variability. During synapsis is when tetrads form.
What type of cell division increases genetic variability?
Meiosis
Would genetic variability wipe out the whole human race during meiosis?
No.
Why synapsis is the key to the diversity that results from meiosis?
The purpose of synapsis is to increase genetic variability
Meiosis and fertilization are important processes because they may most immediately result in?
genetic variation
Which structure is directly correlated with the production of genetic variability in the daughter cells produced during meiosis?
Chiasmata
What process in meiosis increases genetic variation?
The process of meiosis increases genetic variability as it produces Answers.com for Answers.com. Each Answers.com receives half the Answers.com of the parent Answers.com; the half it receives is randomly assorted.
Why is synapsis important to meiosis?
Synapsis creates genetic variability. So the haploid cells produced during meiosis will be different. If this didn't happen, one successful virus is all it would take to eradicate the human race.
What event in meiosis leads to genetic variation in organisms?
Genetic crossover occurs, which causes a sharing and transference of genetic information between maternal and paternal copies of chromosomes and further enhances the genetic variability of their offspring.
Do mitosis and meiosis produce cells with the same amount of genetic information?
Meiosis cells have half the amount of genetic info as cells of mitosis.
An advantage of sexual reproduction is?
An advantage of a sexual reproduction is that it is able to produce more offspring because of the mate. Children are different from the parents and more genetic variation species.
What is genetic variability?
Genetic variability is the tendency of individual genetic characteristics in a population to vary from one another.
What is relationship between gametes and genetic variation?
CrossoverRandom AssortmentRandom Mutation
