Biology teacher

Meiosis II Mind Map for NEET Biology | Step-by-Step Revision Notes   Simple mind map of Meiosis II showing all stages from Prophase II to formation of 4 haploid cells. - Dr.Sanjaykumar Pawar  🌿 MEIOSIS II (Second Meiotic Division) 👉 Meiosis II starts immediately after Meiosis I , without long gap. 👉 It is similar to mitosis (but produces haploid cells). 🔬 1. Prophase II Meiosis II begins just after cytokinesis of Meiosis I. Chromosomes may not fully elongate before starting again. Each cell is now haploid (n) . Chromosomes become short, thick, and visible again (condense). Nuclear membrane breaks down by end of prophase II. Spindle fibers start forming. 👉 Key point: ✔ Chromosomes re-condense ✔ Nuclear membrane disappears ✔ Spindle starts forming 📍 2. Metaphase II Chromosomes arrange themselves at the equator (middle line) of the cell. Each chromosome consists of two sister chromatids . Spindle fibers from opposite poles attach to kinetoch...

M PHASE (Mitosis) – Easy (NEET Level)   M Phase (Mitosis) mind map showing all stages and key NEET points in a simple visual tree format. - Dr.Sanjaykumar Pawar  M PHASE (Mitotic Phase) Text: This is the most dramatic period of the cell cycle, involving a major reorganisation of virtually all components of the cell. Easy Notes: M phase is the cell division phase . It is called the most dramatic phase because the whole cell changes. The nucleus, chromosomes, cytoplasm, and cell organelles are rearranged. The cell prepares to divide into two new daughter cells . 📝 NEET Point: Maximum visible changes occur in the M phase. Text: Since the number of chromosomes in the parent and progeny cells is the same, it is also called equational division. Easy Notes: Parent cell and daughter cells have the same number of chromosomes . No chromosome number is reduced. Therefore, mitosis is called Equational Division . 📝 NEET Point: Parent cell = 2n Daughter cel...