Biology 20 flashcards ~10 min

Mitosis and Meiosis

Mitosis and meiosis are essential processes of cell division that enable organisms to grow, repair tissues, and reproduce. While mitosis produces genetically identical cells for growth and maintenance, meiosis creates genetically unique reproductive cells that...

About this deck

Mitosis and meiosis are essential processes of cell division that enable organisms to grow, repair tissues, and reproduce. While mitosis produces genetically identical cells for growth and maintenance, meiosis creates genetically unique reproductive cells that are necessary for sexual reproduction. Understanding these processes is fundamental to learning genetics, inheritance, and the life cycle of living organisms.

This flashcard deck covers the key concepts of mitosis and meiosis, including the cell cycle, interphase, the stages of mitosis (prophase, metaphase, anaphase, and telophase), cytokinesis, meiosis I and meiosis II, chromosome number, homologous chromosomes, crossing over, independent assortment, and the major differences between mitosis and meiosis. It also explains how meiosis contributes to genetic variation and why accurate chromosome separation is essential for healthy cell division.

Designed for biology students and lifelong learners, these flashcards present important concepts in a clear question-and-answer format that supports active learning and long-term retention. Whether you are studying for quizzes, preparing for biology exams, or reviewing the fundamentals of cell division, this deck provides an effective way to strengthen your understanding of mitosis, meiosis, and the biological processes that support growth, reproduction, and heredity.

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The cell cycle allows cells to grow, replicate their DNA, and divide to produce new cells.
Mitosis is the process of nuclear division that produces two genetically identical daughter cells.
Mitosis supports growth, tissue repair, and asexual reproduction.
Two daughter cells.
Meiosis is a specialized type of cell division that produces haploid gametes for sexual reproduction.
Four daughter cells.
They are haploid, containing half the number of chromosomes as the parent cell.
The cell grows, performs normal functions, and replicates its DNA.
Chromosomes condense, the nuclear envelope breaks down, and the spindle apparatus begins to form.
Chromosomes align at the cell's equator (metaphase plate).
Sister chromatids separate and move toward opposite poles of the cell.
New nuclear envelopes form around each set of chromosomes, and the chromosomes begin to decondense.
Cytokinesis is the division of the cytoplasm that separates one cell into two daughter cells.
Meiosis I separates homologous chromosomes, reducing the chromosome number by half.
Meiosis II separates sister chromatids into individual cells.
Crossing over is the exchange of genetic material between homologous chromosomes during prophase I of meiosis.
It increases genetic variation among offspring.
Independent assortment is the random distribution of homologous chromosome pairs into gametes during meiosis I.
Mitosis produces two genetically identical diploid cells, while meiosis produces four genetically diverse haploid cells.
It produces haploid gametes, ensuring the chromosome number is restored when fertilization occurs.