Evidence That Gibberellins Are Produced by Plants Was Gathered in Studies

question 109

Multiple Choice

Evidence that gibberellins are produced by plants was gathered in studies with dwarf mutant strains of tomato.Work on dwarf peas produced the same results: treatment with gibberellins caused the dwarf plants to _______, while the normal, tall plants _______.

• A) grow taller; also grew taller, but only slightly
• B) grow taller; were virtually unaffected
• C) stop growing immediately; stopped growing after a period of time
• D) stop growing; were virtually unaffected
• E) die; stopped growing