Tamilnadu BoardEnglish MediumSTD 9ScienceBIOLOGY CH18 Organization of Tissues2 Marks
Question
What is a tetrad?
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Answer
The chromosomes are visible as long paired twisted threads. The pairs so formed are called bivalents. Each bivalent now contains four chromatids (tetrad stage) in pachytene of mieotic prophase I. The condition of bivalent containing four chromatids are called tetrad stage.
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