Which statement correctly describes the signal transduction pathway initiated by the binding of cytokinins to its receptor protein?
A) Protein kinase activity occurs at the cytoplasmic end of the receptor,leading to activation of effectors.
B) Protein kinase activity occurs at the extracellular end of the receptor,leading to activation of transcription factors.
C) Transcription factors are activated,leading to activation of effectors.
D) Gene transcription leads to production of more receptor proteins.
E) The cytokinin‒receptor complex enters the nucleus,leading to gene expression.

Question

Quizplus · Accepted Answer

The binding of cytokinins to its receptor protein leads to protein kinase activity at the cytoplasmic end of the receptor, which then activates downstream effectors. This is a classic example of a receptor tyrosine kinase pathway.

Which Statement Correctly Describes the Signal Transduction Pathway Initiated by the Binding