MCQ
A nerve impulse is transmitted from one neuron to another through the junctions called
- ANeuromuscular junction
- BNeuroeceptor junction
- ✓Neurosynaptic junction
- DNeuroglandular junction
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$(a)$ Complete disintegration of the nuclear envelope marks the start of the second phase of mitosis.
$(b)$ Metaphase chromosome is made up of one sister chromatid.
| Column $- I$ | Column $- II$ |
| $(1)$ Psilopsida | A. Sellaginella |
| $(2)$ Lycopsida | $(B)$ Adiantum |
| $(3)$ Sphenopsida | $(C)$ Equisetum |
| $(4)$ Pteropsida | $(D)$ Psilotum |