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Size of pollen grain in Myosotis - Botany

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प्रश्न

Size of pollen grain in Myosotis

पर्याय

  • 10 micrometer

  • 20 micrometer

  • 200 micrometer

  • 2000 micrometer

MCQ

उत्तर

10 micrometer

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पाठ 1: Asexual and Sexual Reproduction in Plants - Evaluation [पृष्ठ २६]

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सामाचीर कलवी Biology (Botany) [English] Class 12 TN Board
पाठ 1 Asexual and Sexual Reproduction in Plants
Evaluation | Q 5 | पृष्ठ २६
सामाचीर कलवी Botany [English] Class 12 TN Board
पाठ 1 Asexual and Sexual Reproduction in Plants
Evaluation | Q 5 | पृष्ठ ३२

संबंधित प्रश्‍न

Where and how does triple fusion take place? 


What are the advantages of the following in the flower to the plant concerned?

Fragrant nectar


Given ahead is a diagrammatic sketch of the sectional view of a germinating pollen grain. Study the same and then answer the question that follows:

What is the function of the part labelled '4'?


What is ‘double fertilization’? Describe it with the help of a neat and well-labeled diagram. Give its importance.                              


Expand the following abbreviation IW.


Explain the pollination process in maize.


Why fertilization process in angiosperms is called as double fertilization?


The seed is a fertilized _______.


Identify the incorrect pair


Define triple fusion.


What is Mellitophily?


The success of seed plants on land is mainly due to ______.


In a breeding experiment, the selected male parent is diploid and the female parent is tetraploid. What will be the ploidy level of the endosperm that will develop after double fertilisation?


Double fertilization and triple fusion were discovered by ______.


Double fertilization is characteristic of ______.


Fusion of one of the male gametes with egg nucleus is referred to as ______.


Double fertilization is a distinctive feature of ______.


Which is the triploid tissue in a fertilised ovule? How is the triploid condition achieved?


Select the option that shows the correctly identified 'U', 'X', 'Y' and 'Z' in a developing dicot embryo.


Name the following:

A diploid nucleus in central cell of embryo sac in plants.


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