Meiosis

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What is meiosis?

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Meiosis is a type of cell division that reduces the chromosome number by half, resulting in the formation of four genetically diverse gametes (sperm or eggs).

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What is the main advantage of sexual reproduction?

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The main advantage of sexual reproduction is genetic variation, which increases the chances of survival and adaptation in changing environments.

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What is genetic variation?

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Genetic variation refers to the differences in DNA sequences among individuals, which can lead to different traits and characteristics.

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What is fertilization?

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Fertilization is the process where a sperm cell combines with an egg cell to form a zygote, initiating the development of a new organism.

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What are gametes?

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Gametes are reproductive cells (sperm and eggs) that contain half the genetic material of an organism, produced through meiosis.

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What is crossing over?

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Crossing over is a process during meiosis where homologous chromosomes exchange genetic material, increasing genetic diversity.

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What is independent assortment?

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Independent assortment is the random distribution of homologous chromosome pairs during meiosis, contributing to genetic variation.

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What is the difference between mitosis and meiosis?

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Mitosis results in two identical daughter cells for growth and repair, while meiosis produces four genetically diverse gametes for reproduction.

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What is a zygote?

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A zygote is the fertilized egg formed when a sperm cell and an egg cell unite, marking the beginning of a new organism.

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What role do chromosomes play in meiosis?

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Chromosomes carry genetic information and are duplicated and divided during meiosis to ensure each gamete receives the correct number of chromosomes.