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#plant developmental biology question

4 public questions tagged with this topic.

Petal identity in ABCE model is specified by:

Pick B: A + B + E. Thinking through ABCE & ABCDE MODEL +Synapdrgon flowering step by step rules out the lookalikes and leaves A + B + E. Skip these: A) A + E; C) B + C + E; D) C + E. 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.

In ABCE model, Class E genes are mainly represented by:

Correct option is D, SEPALLATA genes. In ABCE & ABCDE MODEL +Synapdrgon flowering problems like this, the accurate statement is SEPALLATA genes; the others are common mix-ups. Not these: A) AP1 and AP2; B) AP3 and PI; C) AGAMOUS. 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.

Loss of function of LFY gene results in:

Correct option is B, Inflorescence instead of flowers. In ABC MODEL problems like this, the accurate statement is Inflorescence instead of flowers; the others are common mix-ups. Not these: A) Extra petals; C) Only carpels; D) Normal flowers. 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.

Which gene is Arabidopsis homolog of Antirrhinum FLO gene?

LFY (B) is correct here. This is core ABC MODEL: once you know the definition or pathway step, LFY is the clear fit. The wrong ones are A) AP1; C) AG; D) PI. If the topic is about gradients or potentials, water/solutes move from higher to lower of the relevant quantity.

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