Ethylene

Q25: Which pigment is responsible for the phototropism

Q26: Ripening fruits are attached firmly to their

Q27: The phytochrome that is active and absorbs

Q28: In seeds from northern areas, what plant

Q29: Seed germination is stimulated by<br>A) gibberellin.<br>B) abscisic

Q31: Cutting a hedge with a trimmer stimulates

Q32: A scientist who claims to have discovered

Q33: _induces dormancy in seeds and buds and

Q34: Gravitropism is a plantʹs<br>A) response to stress-inducing

Q35: Which of these hormones causes cell elongation,