A system of classification, in which a large number of traits are considered, is
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Lead abscission, fruit fall, bud dormancy occurs by which of the following phytohormone?
The number and types of organisms present on earth is known as -
Select the incorrect statement about NADH during cellular respiration.
W'hich of the following statement is not correct about xylem?
Protonema and leafy stage are the predominant stage of the life cycle of
Which of the following hormone closes stomata in response to water stress?
Assertion : Families are characterised on the basis of both vegetative and reproductive features of plant species.
Reason : Three different genera Solanum, Petunia and Datura are placed in the family Anacardiaceae.
The reasons for the involvement of different enzyme in each step of glycolysis is that
Which one of the following statement is incorrect ?
(i) Epiderm al cell has sm all am ount of cytoplasm and a large vacuole.
(ii) Waxy cuticle layer is absent in roots.
(iii) Root hairs are unicellular, while stem hairs / trichomes are multicellular.
(iv) Trichomes may be branched or unbranched, soft or stiff and prevent transpiration.
(v) Guard cells are dumbell shaped in dicots and beanshaped in monocots (e.g. grass).
Which of the following statement(s) is/are correct about mosses ?
Assertion : Genus Panthera, comprising lion, tiger, leopard is put along with genus, Felis in the family Felidae.
Reason : Families like Convolvulaceae, Solanaceae are included in the genera Solanum mainly based on the floral characters.
Which of the following statement(s) is/are correct about RuBisCO?
For bacteria to continue growing rapidly when they are shifted from an environment containing O2 to an anaerobic environment, they must
Which of the following statement is not the characteristic of growth of an organism?
1 videos|26 docs|121 tests
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1 videos|26 docs|121 tests
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