What is Crossing Over? Real-Life Examples Explained
Learn how crossing over occurs during meiosis with real-life examples and understand its significance in genetic diversity.
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A real-life example of crossing over can be seen in mitotic or meiotic cell division. During meiosis, homologous chromosomes exchange segments of genetic material in a process called genetic recombination or crossing over. This increases genetic diversity, which is crucial for evolution and the survival of species.
FAQs & Answers
- What is the definition of crossing over? Crossing over is the exchange of genetic material between homologous chromosomes during meiosis, leading to genetic diversity.
- Why is crossing over important? Crossing over increases genetic variation, which is essential for evolution and the adaptability of species.
- How does crossing over occur? During meiosis, homologous chromosomes pair up and exchange segments of DNA, a process known as genetic recombination.
- Can crossing over happen during mitosis? No, crossing over occurs specifically during meiosis, not mitosis, which is primarily for growth and repair.