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प्रश्न
In an embryo sac, the cells that degenerate after fertilisation are ______.
विकल्प
Synergids and primary endosperm cell
Synergids and antipodals
Antipodals and primary endosperm cell
Egg and antipodals
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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.
The embryo sac is ______
The method of embryo sac forming from a single megaspore is called ______.
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.
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.
The female gametophyte of angiosperms is called the embryo sac. How many cells and nuclei does a mature embryo sac contain?
During the development of the female gametophyte, the functional megaspore undergoes mitotic divisions without immediate cell wall formation. What are these divisions called?
In the first mitotic division of the functional megaspore, the two daughter nuclei move to opposite poles of the enlarging megaspore. What stage is this called?
Following the 2-nucleate stage, both nuclei divide simultaneously during the second mitotic division. What is the resulting stage called, and how many nuclei are at each pole?
Which cells or cell group at the micropylar end of the mature embryo sac constitute the egg apparatus?
The mature embryo sac is described as monosporic and of the Polygonum type. What does the term monosporic indicate about the origin of the embryo sac?
Based on the cell distribution table, which cell or group of cells contributes a haploid gamete nucleus during double fertilization?
What is the total number of haploid nuclei present in the 8-nucleate stage of the developing female gametophyte before cell walls are formed?
During the development of the embryo sac, which stage immediately precedes the formation of the polar nuclei by migration?
How many mitotic divisions are required to convert the haploid functional megaspore into the 8-nucleate stage?
