A research team conducts an experiment focusing on plant morphology, particularly examining the developmental patterns of shoots, roots, leaves, and the arrangement of leaves on the stem (phyllotaxy) of a certain species of flowering plants. They observe the initiation of shoot and root apical meristems in a germinating seed, the emergence and differentiation of leaves, and the specific phyllotaxy associated with the species. Based on their observations, they propose a hypothesis regarding the genetic and environmental factors influencing these developmental processes.
Given this scenario, identify the correct statement among the following options:
1
The development of shoots and roots is entirely determined by environmental factors, such as soil composition and sunlight, with no genetic influence.
2
Leaf development and the final form are solely dependent on the genetic makeup of the plant, and environmental conditions like light intensity and availability of nutrients play no role in leaf differentiation and growth
3
Phyllotaxy, the arrangement of leaves on the plant stem, is a random process that does not follow any specific pattern or rule and varies widely even within the same species under identical environmental conditions.
4
During the initial stages of plant growth, the shoot and root apical meristems are key sites for cell division and differentiation, which contribute to the formation of the respective organs, while leaf development and phyllotaxy are regulated by both genetic programming and environmental cues, influencing the efficiency of photosynthesis and overall plant health.