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Sexual Reproduction In Flowering Plants

Question
CBSEENBI12002181
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Whic of the following statements is not correct?

  • Insects that consume pollen or nectar without bringing about pollination are called pollen nectar robbers

  • Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil

  • Some reptiles have also been reported as pollinators in some plant species

  • Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style

Solution

D.

Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style

Pollen grains of others species are not compatible and do not germinate on the stigma of the flower of a different species. 

Some More Questions From Sexual Reproduction in flowering Plants Chapter

In a bisexual flower when the gynaecium matures earlier than anther, it is called as :

Simultaneous meiotic division of microspore mother cells leads to :

The fertilization occurs in the :

The female gametophyte of a typical dicot at the time of fertilization is:

Development of embryo  from any cell of nucellus is called :

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

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