Thursday, August 18, 2011
What are the genetic differences (in regards to mieosis and mitosis) in the daughter cells?
In mitosis, the daughter cells that are produced are genetically identical. Not so in Mieosis, Because the chromosomes of each parent undergo genetic recombination during meiosis, each gamete, and thus each zygote, will have a unique genetic blueprint encoded in its DNA. In other words, meiosis and ual reproduction produce genetic variation owing to the cross-over (chiasma) in prophase of Mieosis I. Also the chromosome number is maintained in Mitosis, but in meosis there are TWO consecutive divisions, and the genetic material is replicated only once, hence in the 4 daughter cells there is only half the total number of chromosomes, hence we call the daughter cells of mitosis as dipolid, because they contain the chromosome PAIRS and mieosis is haploid, because it only has ONE of the chromsomes. Also chromosomes ort independently during gametogensis producing even more variation in the resulting gametes, when sperm and egg join, the diploid number of chromosomes is restored and the offspring now has UNIQUE combination of characters
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