MEDIUM
Earn 100
Superficial placentation is found in monocarpellary ovary.
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Important Questions on Sexual Reproduction in Flowering Plants
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
Proximal end of the filament of stamen is attached to the:
EASY
Example for a monodelphous androecium is
MEDIUM
Study the following:
| List-I | List-II | ||
| (A) | Cohesion among the anthers only | (I) | Citrus |
| (B) | Cohesion of staminal filaments only into bundles | (II) | Cucurbita |
| (C) | Adhesion of stamens to tepals | (III) | Allium |
| (D) | Adhesion of stamens to Sepals | (IV) | Grevillea |
| (V) | Helianthus |
EASY
Which one of the following organisms reproduces sexually only once in its lifetime?
MEDIUM
The anthers of Malvaceae are
HARD
A student observed four plants The number of stamens in a flower of is equal to those of a flower of . Out of the ten stamens arranged in two bundles in a flower of 'C' the stamen number in the bundle which possesses most of the stamens is three times to that of inner whorl of a flower of In the number of stamens is equal to those present in the inner whorl of plant 'B'. Identify and plants respectively.
EASY
If the female parent bears bisexual flowers, removal of anthers from the flower bud before the anther dehisces using a pair of _____ (forceps/powerglass/needle) is necessary.
EASY
Each stamen is a modified _____ .
EASY
Tetradynamous stamens are found in the family of
HARD
Select the correct option with respect to labelled structure A, B, C, D, and E in the transverse section of microsporangia.
HARD
The flower of which angiosperm family are Zygomorphic?
EASY
Fill in the blank with the correct option from the bracket.
Microsporophyll : Stamen :: Megasporophyll : _____ (Ovule, Carpel, Embryo sac)
EASY
Androecium is a collection of _____ .
EASY
The terminal Structure of stamen is called
MEDIUM
Stamens with long bifurcated connective are found in ________ flower.
HARD
Read the following four statements (A - D).
(A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.
(B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth.
(C) Stamens in flowers of Gloriosa and Petunia are polyandrous.
(D) Symbiotic nitrogen fixers occur in free-living state also in soil.
How many of the above statements are right ?
EASY
Sexuality in plants is varied, particularly in _____, due to the production of diverse types of flowers.
MEDIUM
The branch of agriculture which deals with the growth of ornamental plants is called horticulture while the one which is aimed for the growth and marketing of flowers is called_____.
