In recombination, cross-overs exchange alleles between homologous chromosomes during meiosis in both parents. This is what allows for much of the genetic variation in the offs â¦ pring of a population in each generation. Sexual recombination works in three different ways.
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10 days and 9 night Ashenda at Tigray and Historical route tours From 15 August - 25 August 10 Days /9 Nights. Fly from Addis to Bahir Dar , at Bahir Dar Airport you will met our professional representative , transfer and Check in to your hotel.