MCQ
Thymosin is responsible for:
- ARaising the blood sugar level.
- BRaising the blood calcium level.
- CDifferentiation of $T$ lymphocytes.
- ✓Decrease in blood $\text{RBC}.$
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$I.$ Differentiation
$II.$ Redifferentiation
$III.$ Dedifferentiation
Select the right combination from the given option
$(i)$ Unicellular, colonial, filamentous, symbiotic or free living.
$(ii)$ The colonies are surrounded by a gelatinous sheath.
$(iii)$ Some can fix atmospheric nitrogen in specialized cells called heterocysts.
$(iv)$ They often form blooms in water bodies.