Tadpoles of frogs can be made to grow as giant sized tadpoles, if they are:
A. Administered large amounts of thyroxine
B. Reared on a diet rich in both egg yolk and glucose
C. Reared on a diet plentiful in egg yolk
D. Administered antithyroid substance like thiourea
Answer:A
Tadpoles of frogs can be made to grow as giant sized tadpoles, if they are:
A. Administered large amounts of thyroxine B. Reared on a diet rich in both egg yolk and glucose C. Reared on a diet plentiful in egg yolk D. Administered antithyroid substance like thiourea