NEET Biology Plant Growth And Development Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Plant Growth And Development Topic Based

Question & Answer Discuss:

Which of the following were not observed in studies done on certain dwarf strains of plants ?

(a) Dwarf strains grew normally if additional fertilizer was applied

(b) Applications of extracts of normal strains promoted growth of dwarf strains.

(c) Application of gibberellin A1 promoted growth of dwarf strains

(d) Gibberellin caused little additional growth of normal strains.

Answer: (a)

Dwarf strains were genetically unable to produce gibberellin, so additional fertilizers would have no effect.

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