Crey | Where does this evidence come from? – crossing over takes place at a four-stranded stage and not at two stranded stages of chromosomes 2:2:2:2 organization of ascospores in Neurospora, studies on linkage maps of chromosomes in Drosophila, studies of meiosis in maize, 4:4 organization of ascospores in Neurospora

Question

Where does this evidence come from? – crossing over takes place at a four-stranded stage and not at two stranded stages of chromosomes

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