Skip to content
Login Register

#hypocotyl elongation

3 public questions tagged with this topic.

Gibberellins

In darkness, GA promotes hypocotyl elongation by:

Pick B: Degrading DELLA. Thinking through Gibberellins step by step rules out the lookalikes and leaves Degrading DELLA. Skip these: A) Activating HY5; C) Inhibiting PIF; D) Repressing GA biosynthesis. For hormones and genes, match the molecule or gene to its real role, not a neighboring pathway.

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

View Details
cryptochrome

Blue-light-induced suppression of hypocotyl elongation is absent in which mutant?

The right choice is B: hy4. In cryptochrome, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) phyB; C) cop1; D) pif. 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.

View Details
cryptochrome

Which cryptochrome isoform primarily inhibits hypocotyl elongation?

Correct option is A, CRY1. In cryptochrome problems like this, the accurate statement is CRY1; the others are common mix-ups. Not these: B) CRY2; C) CRY3; D) All equally. 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.

View Details