Plant Growth and Development NEET UG syllabus, online tests and question papers. The NEET medical entrance exam syllabus comprises these topics. Seed germination; phases of plant growth and plant growth rate; conditions of growth; differentiation, dedifferentiation and redifferentiation; sequence of developmental processes in a plant cell; growth regulators - auxin, gibberellin, cytokinin, ethylene, ABA; seed dormancy; vernalisation; photoperiodism.