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#plant genetics MCQ

3 public questions tagged with this topic.

Which gene is Arabidopsis homolog of Antirrhinum FLO?

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

AGAMOUS (AG) gene mainly specifies:

Answer: C) Stamens and carpels. For ABCE & ABCDE MODEL +Synapdrgon flowering, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Sepals; B) Petals; D) Ovules. 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.

Class D gene mutants stk/shp1/shp2 show:

Absence of normal ovules (C) is correct here. This is core ABCE & ABCDE MODEL +Synapdrgon flowering: once you know the definition or pathway step, Absence of normal ovules is the clear fit. The wrong ones are A) Normal ovules; B) Extra ovules; D) Leaf-like carpels. 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.