Practice question
Question
Kinetin was discovered from DNA of:
Explanation
The right choice is B: Herring sperm. In Cytokinin, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Salmon sperm; C) Maize endosperm; D) Wheat embryo. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.