Skip to content
New summer mock series is live Attempt timed papers for SSC, banking, and engineering entrances with updated syllabi for this season. View exams

#brassinosteroid signalling

6 public questions tagged with this topic.

Active BIN2 phosphorylates which transcription factors?

That points to B: BES1/BZR1. Compared with the other options, BES1/BZR1 is the one that correctly describes the Brassinosteriod concept. The wrong ones are A) ARF; C) DELLA; D) HY5. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

BIN2 is functionally similar to which animal kinase?

Answer: B) GSK3. For Brassinosteriod, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) MAPK; C) PKA; D) PKC. Name the process first, then pick the option that describes it — don’t reverse cause and effect.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

Which kinase negatively regulates BR signaling?

Go with B — BIN2. Under Brassinosteriod, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) BSK1; C) BSU1; D) CDG1. When two options sound similar, choose the one that matches the textbook definition most tightly.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

Upon BR binding, BRI1 heterodimerizes with:

Correct option is B, BAK1. In Brassinosteriod problems like this, the accurate statement is BAK1; the others are common mix-ups. Not these: A) BIN2; C) BSU1; D) PP2A. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

In absence of BR, BRI1 forms inactive complexes with:

Go with C — BKI1. Under Brassinosteriod, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) BIN2; B) BES1; D) BSK1. When two options sound similar, choose the one that matches the textbook definition most tightly.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

BRI1 belongs to which receptor family?

The right choice is B: LRR receptor-like kinase. In Brassinosteriod, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) GPCR; C) Ion channel; D) Histidine kinase. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.