Crossing over occurs in meiosis. There is no need for crossing over in mitosis.
Meiosis 1 is the process of separating chromosomes (independent assortment). Independent assortment is the random assortment of chromosomes. So without meiosis, there would be no way to separate the chromosomes randomly. Hope that helps(:
independent assortment
Independent assortment happens at random when alleles are taken from different homlogous chromosomes or when the same pair of chroosomes are far apart during meiosis; this results in diversity in genetic combinations.
Independent assortment does not happen in mitosis, it happens in meiosis. In metaphase I of meiosis, synapsed homologous chromosomes align independently of one another along the metaphase plate. That is to say, one aligning in a certain fashion has no effect on another aligning in a certain fashion. In mitosis, chromosomes are exact copies of the parental cell's and independent assortment is a method of achieving genetic variation, which does not happen in mitosis.
crossing over, random fertilization, and an independent assortment of chromosomes
The random distribution of homologous chromosomes during meiosis is called independent assortment
Meiosis 1 is the process of separating chromosomes (independent assortment). Independent assortment is the random assortment of chromosomes. So without meiosis, there would be no way to separate the chromosomes randomly. Hope that helps(:
the random distribution of the pairs of genes on different chromosomes to the gametes
Independent.
independent assortment
independent assortment :)
Independent assortment happens at random when alleles are taken from different homlogous chromosomes or when the same pair of chroosomes are far apart during meiosis; this results in diversity in genetic combinations.
(Mendel's law of) independent assortment. This states that the chromosomes can line up along the equatorial line in 2^23 different arrangements (in humans- but 2^n in other animals with a different number of chromosomes)
Independent assortment does not happen in mitosis, it happens in meiosis. In metaphase I of meiosis, synapsed homologous chromosomes align independently of one another along the metaphase plate. That is to say, one aligning in a certain fashion has no effect on another aligning in a certain fashion. In mitosis, chromosomes are exact copies of the parental cell's and independent assortment is a method of achieving genetic variation, which does not happen in mitosis.
crossing over, random fertilization, and an independent assortment of chromosomes
The random alignment of homologous pairs of chromosomes during Metaphase 1 allows for independent assortment of genes.
Chromosomes sort independently, not individual genes.