During pachytene, the four chromosomes of bivalents become clearly visible as tetrads, recombination nodules appear, crossing over occurs, and the recombinase enzyme acts.
في طور الباكيتين، تصبح الكروموسومات الأربعة للثنائيات الرباعية واضحة كرباعيات، وتظهر كبيبات إعادة التركيب، ويحدث عبور، ويعمل إنزيم إعادة التركيب.
| A | Pachytene |
|---|---|
| Q1 | 4 chromosomes of Divalents become clearly visible as tetrads |
| Q2 | recombination nodules appear |
| Q3 | crossing over occurs |
| Q4 | recombinase enzyme acts |
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