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  • Chromosome
    Crossing over, occurring during the prophase of the first meiotic division, causes two homologous chromosomes (one paternal and the other one maternal) to exchange segments (containing genetic...

    Asked by lro1979 on via web

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  • Chromosome
    Children are born with recessive genes because of meiosis. The human body cells have 46 chromosomes, whereas human sex cells ( egg and sperm) have 26 chromosomes. Each egg and sperm cell have...

    Asked by persianimmortal on via web

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  • Chromosome
    Every species is characterised by a specific number of chromosomes in the somatic cells. For example, onion cell has 6 pairs of chromosomes. But if we talk about the human cells, there are 23 pairs...

    Asked by bee011 on via web

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  • Chromosome
    Chromosomal crossover occurs when two chromosomes exchange portions of genetic material. Chromosomes are formed of DNA and contain a great number of genes. When meiosis occurs, allowing the...

    Asked by cenicienta on via web

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