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Cellular Reproduction

Cellular reproduction is vital for organism growth and repair. This overview focuses on the stages of mitosis and meiosis, detailing interphase through telophase. During interphase, DNA duplicates and condenses into X-shaped chromosomes. Mitosis progresses through prophase, metaphase, anaphase, and telophase, where chromatid separation and cytoplasm division occur. Meiosis follows a similar pattern but includes two rounds of division. Understanding these processes is crucial for grasping genetic inheritance and cell replication.

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Cellular Reproduction

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  1. Cellular Reproduction

  2. I – Interphase: • Period between division • DNA molecules duplicate • Single strands (chromatin threads) X shaped chromosomes • P – Prophase: • Centrioles move to opposite ends creating spindle in between • Nuclear membrane disappears • Chromosomes shorten and thicken • M – Metaphase: • Chromosomes line up along centre of spindle Mitosis

  3. A – Anaphase: • Chromatids separate at centromere with aid of spindle • T- Telophase: • Nuclear membrane forms around newly formed nucleus • Cytoplasm divides (Cytokinesis) Mitosis

  4. P1: Chromosomes visible as long threads  shrink then thicken & spindle forms • M1: Chromosome pairs arrange on spindle at centre • A1: Pairs break up, chromatids remain intact • T1: Cytoplasm divides • P2: see P1 • M2: Individual chromosomes arrange on spindle at centre • A2: Chromosomes break up at centromere into two chromatids • T2: see T1 Meiosis

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