An experiment was conducted to investigate the lateral transport of indoleacetic acid (IAA) in response to unilateral light from the right. Two different treatments of oat coleoptile tips were placed on split agar blocks divided by an impermeable mica barrier:
- Treatment P: The mica barrier completely bisected both the coleoptile tip and the agar blocks underneath.
- Treatment Q: The mica barrier only bisected the agar blocks and the base of the coleoptile tip, leaving the upper part of the tip undivided.
Both setups were exposed to unilateral light from the right for 3 hours.
If a single intact coleoptile tip produces a total of 100 units100\text{ units}100 units of IAA over this time, and unilateral light does not destroy or inhibit the synthesis of IAA, which of the following represents the most likely distribution of IAA (in units) in the left and right agar blocks?
Treatment P: Left =50, Right =50∣Treatment Q: Left =65, Right =35
\text{Treatment P: Left } = 50, \text{ Right } = 50 \quad \Big| \quad \text{Treatment Q: Left } = 65, \text{ Right } = 35
Treatment P: Left =50, Right =50Treatment Q: Left =65, Right =35
Treatment P: Left =65, Right =35∣Treatment Q: Left =50, Right =50
\text{Treatment P: Left } = 65, \text{ Right } = 35 \quad \Big| \quad \text{Treatment Q: Left } = 50, \text{ Right } = 50
Treatment P: Left =65, Right =35Treatment Q: Left =50, Right =50
Treatment P: Left =50, Right =50∣Treatment Q: Left =35, Right =65
\text{Treatment P: Left } = 50, \text{ Right } = 50 \quad \Big| \quad \text{Treatment Q: Left } = 35, \text{ Right } = 65
Treatment P: Left =50, Right =50Treatment Q: Left =35, Right =65
Treatment P: Left =35, Right =35∣Treatment Q: Left =50, Right =50
\text{Treatment P: Left } = 35, \text{ Right } = 35 \quad \Big| \quad \text{Treatment Q: Left } = 50, \text{ Right } = 50
Treatment P: Left =35, Right =35Treatment Q: Left =50, Right =50