EASY
Earn 100
Illustrate diagrammatically microsporogenesis in flowering plants.
Important Questions on Sexual Reproduction in Flowering Plants
EASY
Pollen grains are well-preserved as fossils because of the presence of _____.
MEDIUM
The Campylotropous ovule is characterized by _____.
MEDIUM
Match the following lists:
| List I | List II |
| A) Epidermis | I) Thin walled cells |
| B) Tapetum | II) One celled thick |
| C) Endothecium | III) Inner most layer |
| D) Stomium | IV) Fibrous thickening |
| V) Meiosis |
The correct match is:
HARD
When and where do tapetum and synergids develop in flowering plants? Mention their function.
EASY
In Angiosperms, microsporogenesis and megasporogenesis:
EASY
The ovule of angiosperm is technically known as :
EASY
If we explore anther wall from outside to inside then which sequence will be correct?
A- Endothecium
B- Tapetum
C- Epidermis
D- Middle Layer
MEDIUM
Draw a labelled diagram of a germinating pollen grain with at least four labellings.
EASY
Which one of the following statements is not true?
EASY
The ovule of an angiosperm is technically equivalent to
MEDIUM
Where are the sporopollenin present in the male gametophyte of an angiosperm? Mention the function of it.
EASY
Proximal end of the filament of stamen is attached to the:
EASY
Where are the generative cell present in the male gametophyte of an angiosperm? Mention the function of it.
EASY
Some seeds such as black pepper and beet, remnants nucellus persist is known as:
HARD
Draw a schematic transverse section of a mature anther of an angiosperm. Label its epidermis, middle layers, tapetum, endothecium, sporogenous tissue and the connective.
HARD
Why meiosis is essential at the time of sporogenesis in angiosperms? Explain the process of formation of male gametophyte in angiosperms with suitable diagrams.
HARD
Draw a labelled diagram of the T.S. of a mature anther.
EASY
How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?
EASY
Male gametophyte in angiosperms produces :
HARD
Which one of the following statements is not true?
