Practice question
Question
Biologically more active form of zeatin is:
Explanation
The right choice is B: trans-zeatin. 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) cis-zeatin; C) ribosyl-zeatin; D) glycosyl-zeatin. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.