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Sexual Reproduc...

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  • Question 1
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    Pollen grain are able to tolerate extremes of temperature and desiccation because their exine consists of 

  • Question 2
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    A diploid female plants crossed with tetraploid male. The ploidy of endosperm will be 

  • Question 3
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    Which one of the following is resistant to enzyme action?

  • Question 4
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    A gymnospermic leaf carries 16 chromosomes. The number of chromosomes in its endosperm is .............................

  • Question 5
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    Phytochrome is found in

  • Question 6
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    An example of a seed with endosperm, perisperm and caruncle is 

  • Question 7
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    The part of a seed which grows and develops into shoot on germination is

  • Question 8
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    Pollen grains are present in

  • Question 9
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    Apomictic embryos in Citrus arise from

  • Question 10
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    The seed which have separate endosperm is

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