Multiple Choice Questions

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Which of the following pairs is not correctly matched?

  • Mode of reproduction                               Example
    Offset                                                        Water hyacinth

  • Mode of reproduction                               Example
    Rhizome                                                     Banana
  • Mode of reproduction                                       Example 
    Binary fission                                                      Sargassum 
  • Mode of reproduction                                       Example 
    Binary fission                                                      Sargassum 


C.

Mode of reproduction                                       Example 
Binary fission                                                      Sargassum 

The plant body Sargassum is a diploid sporophyte.  It does not multiply asexually by means of spores. Instead it reproduce by vegetative means, i.e. fragmentation which is the only known method of vegetative reproduction in the free floating species of Sargassum. 

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Monoecious plant of Chara shows occurrence of 

  • antheridiophore and archengoniophore on the same point

  • stamen and carpel on the same plant

  • upper antheridium and lower oogonium on the same plant

  • upper antheridium and lower oogonium on the same plant

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In vitro clonal propagation in plants is characterised by

  • PCR and RAPD

  • Northern blotting

  • Electrophoresis and HPLC

  • Electrophoresis and HPLC

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Male gametes are flagellated in

  • Polysiphonia

  • Anabaena

  • Ectocarpus

  • Ectocarpus

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In ginger vegetative propagation occurs through 

  • rhizome

  • offsets

  • bulbils

  • bulbils

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Which is the most common mechanism of genetic variation in the population of sexually reproducing organism?

  • Transduction

  • Chromosomal aberrations

  • Genetic drift

  • Genetic drift

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Which one of the following matches is correct?

  • Phytophthora Aseptate mycelium Basidiomycetes
  • Alternaria Sexual reproduction Deuteromycetes

  • Mucor Reproduction by conjugation Asocmycetes
  • Mucor Reproduction by conjugation Asocmycetes
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What will you look for to identify the sex of the following?

  • male frog - a copulatory pad on the first digit of the hind limb

  • Female cock - anal cerci

  • Male shark - claspers borne on pelvic fins

  • Male shark - claspers borne on pelvic fins

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Archegoniophore is present in 

  • Chara

  • Adiantum 

  • Funaria

  • Funaria

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What is common between vegetative reproduction and apomixis?

  • Both are applicable to only dicot plants

  • Both bypass the flowering phase

  • Both occur round the year

  • Both occur round the year

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