MCQ
How many shoot apical meristems are likely to be present in a twig of a plant possessing, $4$ branches and $26$ leaves?
- A$26$
- B$1$
- ✓$5$
- D$30$
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$(I)$ It is not autoimmune disorder
$(II)$ Affect neuromusculler junction
$(III)$ Occured due to low $Ca^{++}$ in body fluid
$(IV)$ Paralysis of skeletal muscle is symptome of myasthenia gravis

Assertion $(A)$:All vertebrates are chordates but all chordates are not vertebrates.
Reason $(R)$:Notochord is replaced by vertebral column in the adult vertebrates.
In the light of the above statements, choose the most appropriate answer from the options given below: