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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Complete the following flow chart

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प्रश्न

Complete the following flow chart

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उत्तर

Generative cell

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अध्याय 2: Sexual Reproduction in Flowering Plants - VERY SHORT ANSWER [पृष्ठ १२]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
अध्याय 2 Sexual Reproduction in Flowering Plants
VERY SHORT ANSWER | Q 4. | पृष्ठ १२

संबंधित प्रश्न

In most angiosperms, the 3-celled stage of the mature male gametophyte is reached ______


Identify the correct ratio of male gametes, vegetative cells, generative cells and microspore mother cells produced in a microsporangium if 80 pollen grains are released from it.


Assertion (A): Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus.

Reason (R): Presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells.

In the light of the above statements, choose the most appropriate answer from the options given below:


In a male gametophyte, ploidy of tube cell and a male gamete is ______.


What is the function of tassels in the corn cob?


What is the scientific term for the study of the external morphology of mature pollen grains?


The protective double-layered wall or covering of a pollen grain is collectively known as the ___________.


Which specific substance in the exine makes pollen grains highly resistant to environmental stress and aids in their preservation as fossils?


What is the name of the thin, circular region where the exine is absent and the pollen tube eventually emerges during germination?


In dicotyledonous plants, how many germ pores are typically present on a single pollen grain?


What is the "pollenkitt" found on the pollen grains of many insect-pollinated plants?


After being released from the anther, the pollen grain divides into two unequal cells. These cells are named ____________.


Which cell within the developing male gametophyte is responsible for eventually forming the two male gametes?


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