Shelf by Jassmin Pizarro https://padlet.com/jassminp15/q4rmv5mpc6tfaw1 A wall with sections en-us 2025-03-25 23:34:52 UTC 2025-03-30 14:06:24 UTC hello@padlet.com Meiosis jassminp15 https://padlet.com/jassminp15/q4rmv5mpc6tfaw1/wish/3382233354 Meiosis involves two consecutive rounds of division, known as meiosis 1 and meiosis 2. Meiosis 1 is characterized by homologous chromosome pairing and crossing over, where genetic material is exchanged between chromatids. This exchange contributes to genetic diversity. After meiosis 1, the cells enter meiosis 2, which resembles mitosis but does not involve DNA replication. The result is four genetically unique daughter cells, each with half the number of chromosomes. This reduction is vital for sexual reproduction, as it ensures that offspring inherit a complete set of chromosomes when sperm and egg unite during fertilization.


https://byjus.com/biology/meiosis-phases/

]]> 2025-03-26 00:30:02 UTC https://padlet.com/jassminp15/q4rmv5mpc6tfaw1/wish/3382233354 Mitosis jassminp15 https://padlet.com/jassminp15/q4rmv5mpc6tfaw1/wish/3382233355 Mitosis Consists of several phases. Prophase, metaphase, anaphase, and telophase. During prophase, the chromosomes condense, becoming visible under a microscope, while the nuclear envelope starts to break down. In metaphase, chromosome's align at the cell's equatorial plane. Anaphase follows, in which the sister chromatids are pulled apart to opposite poles of the cell. In Telophase, the chromosomes decondense, and the nuclear membrane re-forms around each set of chromosomes, resulting in two identical daughter cells. This process is crucial for growth, tissue repair, and asexual reproduction.


https://kids.britannica.com/students/article/mitosis/603195

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