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Chromosomal Basis of Inheritance. — BIO BOTANY STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12BIO BOTANYChromosomal Basis of Inheritance.1 Mark
MCQ
Mechanism of crossing over involves the following stages. Select the correct sequence.
  • A
    Tetrad stage → Synapsis → Bivalent stage → cross over
  • ✓
    Syndesis → Tetrad → Crossing over → Terminalisation
  • C
    Terminalisation → Tetrad → Bivalent → Cross over
  • D
    Cross over → Bivalent → Tetrad → Terminalisation
✓

Answer

Correct option: B.
Syndesis → Tetrad → Crossing over → Terminalisation
Syndesis → Tetrad → Cross over → Terminalisation

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