What is the significance of crossing over during meiosis in plants?
Correct Answer: Crossing over increases genetic diversity.
- Step 1: Understand that meiosis is a special type of cell division that produces sex cells (like pollen and ovules in plants).
- Step 2: Learn that during meiosis, chromosomes come in pairs called homologous chromosomes.
- Step 3: Know that crossing over is when these homologous chromosomes exchange pieces of genetic material.
- Step 4: Realize that this exchange creates new combinations of genes, which are different from the original chromosomes.
- Step 5: Understand that having different combinations of genes leads to genetic diversity, meaning there are more variations in traits among plants.
- Step 6: Recognize that genetic diversity is important for the survival and adaptation of plant species in changing environments.
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