Figure. The results away from choice agreements from one or two homologous chromosome sets into the newest metaphase dish in the meiosis I.(Mouse click photo so you’re able to greatly enhance)
During the for every single generation, sexually recreating eukaryotes proceed through some reproductive occurrences that may getting summarized by an existence course
An extra way to obtain genetic version throughout the meiosis is the app per incontri coreani replace away from hereditary material amongst the maternal and paternal chromosomes, a system titled crossing-over otherwise recombination. As homologous chromosomes is matched with her from inside the prophase We, items of you to definitely chromosome can be traded on identical portion of the other chromosome. Thus the newest resulting chromosomes are not totally maternal otherwise paternal, but rather a variety of both. Within the humans, crossing over takes place regarding the 2-3 x for each and every chromosome partners, between nonsister chromatids only (maybe not between sibling chromatids).
As the prior to now demonstrated, meiosis gives go up in order to hereditary version from independent selection of chromosomes and you will recombination between sets regarding homologous chromosomes. Continua a leggere