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(place for chiasmata is not always the same)
M1 -random orientation of homologous pairs
-spindle fibers separate homologous chromosomes
A1 -because of crossing over between non-sister chromatids, there is an exchange of genetic information and sister chromatids are no longer identical
M2 -alignment of recombinant sister chromatids is random
-modified combination of alleles
-maternal and paternal chromosomes and alleles can go to different sides of the cell (random)
-gametes are different (4 different cells for every cell undergoing meiosis)
-when there is fertilization, gametes recombine genetic information again
-possible number of chromosome combinations= 2^n (n= no. of chromosomes)
-e.g. for humans over 8 million possible arrangements
-e.g. for humans there are 64 million million different combinations for a new organism (from same mom and dad)
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