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Sexual Reproduc...

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  • Question 1
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    Which one of the following is not true about pollen?

  • Question 2
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    1. Protonemal cell of a moss
    2. Primary endosperm nucleus of a dicot
    3. Leaf cell of a moss
    4. Prothallus of a fern
    5. Gemma cell of Marchantia
    6. Meristem cell of monocot
    7. Ovum of a liverwort
    8. Endosperm of gymnosperm.

    Identify their ploidy in the following order - Haploid, diploid, triploid.

  • Question 3
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    Siphonogamy is a strategy of sexual reproduction adopted by one of the following plant divisions. Which one is it?

  • Question 4
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    In calotropis, a hood like mechanical barrier exists between compatible pollen and stigma to prevent self-pollination. This strategy is termed as:

  • Question 5
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    Match the colour of the flower in column A with the pollinating agent in Column B:

    Column - A Column - B
    1. Yellow flowers with fragrance and nectar A. Bat
    2. White flowers with fragrance and nectar B. Bird
    3. Odourless, red tubular flowers with dilute nectar C. Moth
    4. White or light coloured flowers with strong odour and nectar D. Bees

  • Question 6
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    Which of the following micronutrients is vital for pollen germination?

  • Question 7
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    If you go outside and see a banyan tree and photosynthesizing funaria, you would be looking at:

  • Question 8
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    Double fertilisation involves

  • Question 9
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    Largest cell of embryo sac is

  • Question 10
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    Ophioglossum (adders or snake tongue fern) has the maximum 1260 chromosomes. Then, its spore and protonema would have ______ and _____ chromosomes respectively.

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