Sexual reproduction

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What is sexual reproduction?

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A biological process where two parent organisms contribute genetic material to produce offspring.

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What is meiosis?

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A type of cell division that reduces the chromosome number by half, producing sex cells (gametes).

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What are sex cells?

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Cells that are involved in sexual reproduction; in humans, these are sperm and egg cells.

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What is mitosis?

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A type of cell division that results in two identical daughter cells, used for growth and repair.

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How many chromosomes do human body cells have?

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46 chromosomes (23 pairs).

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How many chromosomes do human sex cells have?

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23 chromosomes.

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What is the main difference between mitosis and meiosis?

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Mitosis produces identical cells for growth, while meiosis produces genetically diverse sex cells.

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What is genetic variation?

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Differences in DNA among individuals, which can lead to diverse traits in offspring.

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What is an advantage of sexual reproduction?

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It increases genetic diversity, which can enhance survival in changing environments.

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What is a disadvantage of sexual reproduction?

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It requires more time and energy to find a mate and produce offspring.