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In floral meristem,

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Important Questions on Morphology and Modifications

MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Among the members of the list given below, how many plants have superior ovaries?

China rose, mustard, brinjal, potato, guava, cucumber, onion and tulip.
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Proximal end of the filament of stamen is attached to the:
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Which of the following flowers is unisexual?
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Radial symmetry is found in the flowers of
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
What is polygamous? Give an example.
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
The hilum is a scar on the:
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Free central placentation is not present in:
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Match Column - I with Column - II and select the correct option using the codes given below:
Column–I Column–II
a. Pistils fused together (i) Gametogenesis
b. Formation of gametes (ii) Pistillate
c. Hyphae of Ascomycetes Fungus  (iii) Syncarpous
d. Unisexual female flower (iv) Dikaryotic
HARD
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
In the ABC model of floral organ determination in Arabidopsis, the expression of class Agenes alone determines the development of sepals, expression of class A genes along with class B genes determines petal formation, expression of class B genes along with class C genes determines the formation of stamens and expression of class genes alone determines carpel formation. Loss of class B gene function would result in flowers with whorls in the following order (from outer whorl to inner whorl)
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R):

Assertion (A): A flower is defined as modified shoot wherein the shoot apical meristem changes to floral meristem.

Reason (R): Internode of the shoot gets condensed to produce different floral appendages laterally at successive nodes instead of leaves.

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

EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Free-central placentation is found in
HARD
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Identify the plant's families and arrange the families based on the numerical numbers in ascending order.
Phaseolus, Smilax, Dracaena, Colchicum, Cajanus, Withania, Atropa, Datura, Ruscus, Capsicum, Derris, Cesturm.
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
The term 'polyadelphous' is related to ------------
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Perigynous flowers are found in:
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
What is the fate of the male gametes discharged in the synergid?
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is :
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
The standard petal of the papilionaceous corolla is also called:
EASY
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Sketch and label "structure of a pea flower'
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology and Modifications>Flower
Match the following lists.
  List-I   List-II   List-III
A China Rose i Acropetal succession I Branched peduncle
B Colocasia ii Mesocarp is fleshy II Hypogynous
C Panicle iii Alternative phyllotaxy III Epigynous
D Cucumber iv Neuter flowers IV Corm

The correct match is: