MCQ
The mineral necessary for nervous conduction is
- AIron
- ✓Sodium
- CPhosphorus
- DMagnesium
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$I.$ Each myosin is a polymerized protein
$II.$ Many meromyosin constitutes one thick filament (myosin)
$III.$ Each meromyosin's tail is called heavy meromyosin $(HMM)$ and head is called light meromyosin $(LMM)$
$IV.$ The globular head is an active $ATP$ ase enzyme and has binding sites for $ATP$ and active sites for actin
Choose the option with correct statements
| Column-l | Column-II |
| A. Trophoblast | i. Embedding of blastocyst in the endometrium |
| B. Cleavage | ii. Group of cells that would differentiate as embryo |
| C. Inner cell mass | iii. Outer layer of blastocyst attached to the endometrium |
| D. Implantation | iv. Mitotic division of zygote |