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Which of the following statements about vernalisation is INCORRECT?
Vernalisation is the promotion of flowering by a period of low temperature.
The cold treatment is perceived by the shoot apical meristem.
Vernalisation always promotes flowering in all plant species.
The vernalisation stimulus can sometimes be transmitted through grafting.
The stable change in the plant brought about by vernalisation is believed to be:
Genetic
Physiological
Epigenetic
Morphological
Vernalisation is most effective when the cold treatment is applied to:
Mature, fully grown plants
Dry seeds
Germinating seeds or young seedlings
Flowers
Which part of the plant perceives the cold stimulus during vernalisation?
Leaves
Roots
Shoot apical meristem
Flowers
If a vernalised plant is grafted onto a non-vernalised plant, and the latter subsequently flowers, this suggests that:
Vernalisation is not necessary for flowering.
The grafting process itself induces flowering.
A transmissible floral stimulus is produced during vernalisation.
Low temperatures are transmitted through the graft.
Which plant demonstrates minimal morphological changes in response to varying light intensities?
Sunflower
Cotton
Maize
Bean
Plasticity is less pronounced in which of these crop plants?
Rice
Wheat
Soybean
Maize
Among the following, which plant shows the least phenotypic variation in response to water availability?
A desert cactus
A grassland wildflower
A submerged aquatic plant
A deciduous tree
If a plant exhibits minimal changes in its physical characteristics despite significant changes in nutrient levels in the soil, it can be said to have low:
Plasticity
Adaptability
Resilience
Tolerance
