Synapsis, Bivalents & Chiasmata — NEET Biology
📚 Practice Concept📖 NCERT Source
Describe the following: (a) synapsis (b) bivalent (c) chiasmata Draw a diagram to illustrate your answer.
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QuestionPractice Question
Arrange the following events of Prophase I of meiosis in the correct chronological order: 1. Formation of synaptonemal complex and initiation of synapsis. 2. Appearance of X-shaped structures called chiasmata. 3. Gradual visibility of chromosomes under light microscope. 4. Occurrence of crossing over between non-sister chromatids. 5. Full condensation of chromosomes and terminalisation of chiasmata. 6. Distinction of four chromatids per bivalent, appearing as tetrads.
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