MCQ
What is the function of prostomium in Pheretima?
- ACovering of mouth.
- BUsed as wedge to dig the soil.
- ✓Both $(a)$ and $(b).$
- DOnly $(b).$
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| Column $-I$ | Column $-II$ |
| $(A)$ Pachytene | $(i)$ Pairing of homologous chromosomes |
| $(B)$ Metaphase$-I$ | $(ii)$ Terminalisation ofchiasmata |
| $(C)$ Diakinesis | $(iii)$ Crossing-over takes place |
| $(D)$ Zygotene | $(iv)$ Chromosomes align at equatorial plate |