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Questions and Answers
What are the three main types of life cycles?
What are the three main types of life cycles?
What is a zygote?
What is a zygote?
Product of the fertilization of two gametes
What is a spore?
What is a spore?
Haploid cell produced by meiosis in sporophyte (2n) individual with no fertilization needed
What is meiosis?
What is meiosis?
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What is mitosis?
What is mitosis?
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Describe zygotic meiosis.
Describe zygotic meiosis.
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Describe gametic meiosis.
Describe gametic meiosis.
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Describe sporic meiosis.
Describe sporic meiosis.
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Study Notes
Types of Meiosis
- Three main life cycle types: zygotic, gametic, and sporic meiosis.
Zygote
- Defined as the product formed from the fertilization of two gametes.
Spores
- Haploid cells produced by meiosis in sporophyte (2n) individuals; they can develop without fertilization.
Meiosis
- A process that reduces diploid (2n) cells to haploid (1n) cells.
Mitosis
- Process that results in the duplication of diploid (2n) cells into identical diploid cells.
Zygotic Meiosis
- Zygote immediately divides by meiosis, producing four haploid cells.
- The haploid cells then undergo mitosis, leading to haploid individuals; gametes are formed through differentiation.
- No diploid stage exists in this cycle.
Gametic Meiosis
- Involves the formation of haploid gametes via meiosis in diploid individuals.
- The fusion of gametes generates a diploid zygote.
- The zygote subsequently undergoes mitosis to create a new diploid individual.
Sporic Meiosis
- Begins with the production of haploid spores from the sporophyte (2n).
- Spores undergo mitosis to generate gametophytes (1n).
- Gametes produced from gametophytes fuse to create a diploid zygote, which then undergoes mitosis to form a new sporophyte (2n).
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Description
Explore the three main types of life cycles: zygotic, gametic, and sporic meiosis. This quiz provides essential definitions and concepts related to meiosis, zygotes, and spores. Understand the differences between meiosis and mitosis through concise flashcard entries.
