Multiple Choice Questions

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Which one of the following is heterosporous?

  • Equisetum

  • Dryopteris

  • Salvinia

  • Adianturn


C.

Salvinia

The sporophyte of pteridophyte produces meiospores inside sporangia. which may be homosporous (e.g.,) Adiantum, Dryopteris, Equisetum, etc.) or heterosporous (e.g., Salvinia, Selaginella, etc.)


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In pteridophytes, phloem is without

  • bast fibers

  • Sieve tubes

  • Companion cells

  • Sieve cells


Identify the wrong combination

  • Dryopteris → Rhizome

  • Cycas → Coralloid roots

  • Volvox → Colonial form

  • Marchantia →Pseudoelaters


After karyogamy followed by meiosis, spores are produced exogenously in

  • Neurospora

  • Alternaria

  • Saccharomyces

  • Agaricus


Wound healing is due to

  • Ventral Meristem

  • Secondary meristem

  • Primary meristem

  • All of these


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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


Lady finger belongs to family

  • Malvaceae

  • Cucurbitaceae

  • Brassicaceae

  • Liliaceae


 Fern spores are usually

  • Haploid

  • Diploid

  • Triploid

  • Tetraploid


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Which one is wrongly matched?

  • Uniflagellate gametes – Polysiphonia

  • Biflagellate zoospores – Brown algae

  • Unicellular organism – Chlorella

  • Gemma cups – Marchantia


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