Multiple Choice Questions

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Wound healing is due to

  • Ventral Meristem

  • Secondary meristem

  • Primary meristem

  • All of these


B.

Secondary meristem

Secondary meristem are the meristem that is formed secondary from the permanent tissue. Healing of wound in plant takes place by the activity of secondary meristem.


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After karyogamy followed by meiosis, spores are produced exogenously in

  • Neurospora

  • Alternaria

  • Saccharomyces

  • Agaricus


Identify the wrong combination

  • Dryopteris → Rhizome

  • Cycas → Coralloid roots

  • Volvox → Colonial form

  • Marchantia →Pseudoelaters


Lady finger belongs to family

  • Malvaceae

  • Cucurbitaceae

  • Brassicaceae

  • Liliaceae


In pteridophytes, phloem is without

  • bast fibers

  • Sieve tubes

  • Companion cells

  • Sieve cells


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The interxylary phloem is found in the stem of

  • Cucurbita

  • Salvia

  • Calotropis

  • None of these


Which of the following supports a dense population of plankton and littoral vegetation?

  • Oligotrophic

  • Eutrophic

  • Lithotrophic

  • Agroecotrophic


Which one is wrongly matched?

  • Uniflagellate gametes – Polysiphonia

  • Biflagellate zoospores – Brown algae

  • Unicellular organism – Chlorella

  • Gemma cups – Marchantia


Which one of the following is heterosporous?

  • Equisetum

  • Dryopteris

  • Salvinia

  • Adianturn


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 Fern spores are usually

  • Haploid

  • Diploid

  • Triploid

  • Tetraploid


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