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#etiolated seedlings

2 public questions tagged with this topic.

Exposure of etiolated seedlings to light results in:

B fits best: De-etiolation. Keep the PHYTOCHROME basics straight and De-etiolation stands out as the precise answer. Avoid: A) Skotomorphogenesis; C) Dormancy; D) Vernalization. Light and flowering items often hinge on which photoreceptor or day-length rule is in play.

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

Etiolated seedlings grown in darkness show which characteristic?

Answer: C) Long hypocotyl. For PHYTOCHROME, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Short hypocotyl; B) Expanded cotyledons; D) High chlorophyll. 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.