Which Was NOT an Observation Made in the Initial Experiments

question 42

Multiple Choice

Which was NOT an observation made in the initial experiments that revealed effects of auxin signaling?

• A)grass seedlings exposed to overhead light bent towards the darkest region of their environment
• B)grass seedlings whose blade tips were removed could not exhibit movement or bending
• C)grass seedlings exposed to laterally-placed light bent towards the light source
• D)grass seedlings tips and bases behaved differently in response to light stimulus