Recent questions tagged botany

Pollen grains that would easily germinate on stigma are formed to germinate invitro, only when 10-220ppm of boric acid is added. This suggests that

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In a type of apomixes known as adventitive embryony, embryos develop directly from

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How many meiotic divisions are necessary for the formation of 100 grains of wheat?

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Which of the following is a post fertilization event in a flowering plant?

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Choose the correct statement amongst the following

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The given figure shows the development of an embryo that undergoes two phases A and B. Select the correct option regarding it.

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Which of the following steps of respiration is amphibolic?

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Photochemical phase does not include

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The enzyme that is no found in C3 plant is

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Viscum is a

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The form of sugar transported through phloem is

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Best material to study meiosis is

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Assertion: Specialization of cell is advantageous to organisms Reason: It increases operational efficiency

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In chloroplasts, chlorophyll is present in the

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Which one of the following is not a function of cytoskeleton in a cell?

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Which one of these in not a eukaryote?

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Assertion: In collateral vascular bundles, phloem is situated towards the inner side. Reason: In monocot stem, cambium is present.

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The given figure shows which of the following cells?

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In unilocular ovary with a single ovule, the placentation is

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A drupe develops in

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Which one of the following statement is correct?

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Which one of the following plants is used to extract blue dye?

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Many pulses of daily use belong to one of the families below (tick the correct answer)

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Which one is a vascular cryptogam?

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Which one is wrong pairing for the disease and its causal organism?

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Which one of the following plant is monoeciuos?

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Contagium vivium fluidum was proposed by

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Match the column I with column II and select the correct options from the codes given below

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The percentage of land area covered under forests according to Indian forest policy is

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Which one is a matching sanctuary?

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A rat feeding on the potato tuber is a

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Source of maximum sulphur is

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Arrange the following ecosystems in increasing order of their mean NPP (tons/ha/year)A. Tropical decisuous forest B. Temperate coniferous forest C. Tropical rain forest D. temperate deciduous forest

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If a population of 50 Paramoecium present in the pool increases to 150 after an hour, what could be the growth rate of the population?

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Which type of interaction is represented by the given figure?

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The key elements that determine differences in environmental conditions of different habitats include:

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A plant without a cell wall is called

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Which of the following statement is/are not correct for single cell proteins?i. The biomass is obtained from unicellular microorganisms only. ii. It provides protein rich supplements iii. SCP can be produced by bacteria and algae but not fungi. iv. It helps to minimize environmental pollution. v. SCP has be processed before use

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The inheritance of flower colour in Antirrhinum is an example of

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Which of the following disease is caused by bacteria?

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A nucleoside duffers from nucleotide. It lacks the

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During expression of operon, RNA polymerase binds to

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Given figure represents the DNA double helix model as proposed by Watson and Crick (1953). Select the option that shows correct measurements of A,B and C

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ZZ/ZW type of *** determination is seen in

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Grasshopper is an example of XO type of *** determination in which males have

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Select the order of the endosperm types

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Which of the following is not correctly matched?

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The micropyle in the seed helps in the entry of

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Which of the following statements is incorrect?

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Amoeba and yeast reproduce asexually by fission and budding respectively, because they are

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