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प्रश्न
In an embryo sac, the cells that degenerate after fertilisation are ______.
पर्याय
Synergids and primary endosperm cell
Synergids and antipodals
Antipodals and primary endosperm cell
Egg and antipodals
उत्तर
In an embryo sac, the cells that degenerate after fertilisation are synergids and antipodals.
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संबंधित प्रश्न
From among the sets of terms given below, identify those that are associated with the gynoecium.
From the statements given below choose the option that are true for a typical female gametophyte of a flowering plant.
- It is 8-nucleate and 7-celled at maturity
- It is free-nuclear during the development
- It is situated inside the integument but outside the nucellus
- It has an egg apparatus situated at the chalazal end
The embryo sac is ______
In a flower, if the megaspore mother cell forms megaspores without undergoing meiosis and if one of the megaspores develops into an embryo sac, its nuclei would be ______.
Name the component cells of the ‘egg apparatus’ in an embryo sac.
Draw the diagram of a mature embryo sac and show its 8-nucleate, 7-celled nature. Show the following parts: antipodals, synergids, egg, central cell, polar nuclei.
With a neat, labelled diagram, describe the parts of a mature angiosperm embryo sac. Mention the role of synergids.
Embryo sacs of some apomictic species appear normal but contain diploid cells. Suggest a suitable explanation for the condition.
Trace the development of a megaspore mother cell to the formation of a mature embryo sac in a flowering plant.
Explain the monosporic development of the embryo sac in the ovule of an angiosperm.
