Multiple Choice QuestionsCoiling of garden pea tendrils around any support is an example of
thigmotaxis
thigmonasty
thigmotropism
thigmotropism
Which one of the following is a xerophytic plant in which the stem is modified into the flag green and succulent structure?
Opunita
Casuarina
Hydrilla
Hydrilla
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous by
the absence of secondary xylem
the absence of secondary phloem
the presence of cortex
the presence of cortex
A fruit developed from hypanthodium inflorescence is called
hesperidium
sorosis
syconus
syconus
Dry indehiscent single-seeded fruit formed from bicarpellary syncarpous inferior ovary is
Caryopsis
cypsela
Adiantum
Adiantum
B.
cypsela
Cypsela is dry, indehiscent, single-seeded fruit develops from an unilocular, single ovulate inferior ovary of bicarpellary, syncarpous, gynoecium possessing basal placentation. The fruit wall develops from pericarp and thalamus and is thin and remains attached to the seed at one point, eg, Helianthus.
Caryopsis are dry, indehiscent, the small single-seeded fruit develops from unilocular single ovule, superior ovary of the multi carpellary gynoecium. It differs from typical achenes as their pericarp is completely fused with the seed coat or testa, eg, Poaceae.
Cremocarp is bilocular and two seeded schizocarpic fruits (small, dry) developed from the inferior ovary of bis carpellary, syncarpous gynoecium possessing persistent stylopodium, eg, Apiaceae.
Berry is fleshy, indehiscent, few to multi-seeded fruit derived from multi carpellary syncarpous gynoecium.The fleshy pericarp of berry consists of epicarp. Mesocarp and endocarp.
The fleshy receptacle of syconus of fig encloses a number of
achenes
samaras
berries
berries
Which one of the following scientist's name is correctly matched with the theory put forth by him?
Weissmann-Theory of continuity of germplasm
Pasteur - Inheritance of acquired characters
de Vries - Natural selection
de Vries - Natural selection
is that of
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