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ICSE Class 10 Answered

what is the importance of meiosis in creating variation?
Asked by hari | 25 May, 2012, 04:04: PM
answered-by-expert Expert Answer
In meiosis, variation occurs, because each gamete (either sperm or egg) contains a mixture of genes from two different parent chromosomes in sexual reproduction. In other words, the genetic coupling of non-identical DNA takes place in meiosis. It results in an offspring, which has the genetic material of two different individuals. A new combination of genetic information is produced in the gametes. This ultimately results in a new and unique set of chromosomes.
 
Crossing over occuring during Prophase I and independent assortment of chromosomes occuring during Metaphase I increases genetic variation.
Answered by | 26 May, 2012, 08:52: AM

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