Assertion : In the syconus type of fruit, the achenes formed are fewer than the total number of flowers in the inflorescence from which it is formed.
Reason : Upper and middle flowers cannot develop into fruits.
The correct answer is:
Important Questions on Morphology of Flowering Plants
Study the following table :
| (I) | Modified aerial stem |
Unisexual flowers develop acropetally |
Chalazal entry of pollen |
| (II) | Flowers achlamydeous length |
Pedicels of all the flowers are of same |
Presence of false whorl |
| (III) | Cohesion of bracts forming a cup |
Centrifugal opening of flowers |
Male flowers many |
| (IV) | Flower formation on one side in a spiral manner | Presence of rachilla | Terminal part of the peduncle is flowerless |
Select the correct pair of answers in which the former represents the set of characters present in Poinsettia and the latter in the pair represents the set of characters present in Casuarina.
A perennial shrub has compound leaves and solitary zygomorphic and epigynous flowers. Each flower reveals dichlamydeous condition with many stamens and multiple fruit with exalbuminous seeds.
What is the ratio of advanced and primitive characters in it?
Identify a pair of the following plants which show a modification of axillary buds into tendrils and hooks respectively:
I. Hugonia
II. Duranta
III. Passiflora
IV. Dioscorea
The correct pair is:
Study the following table:
| I. | False whorl like inflorescence |
Many sessile bisexual flowers |
Leonotis |
| II. | Single flower inflorescence |
Many stalked staminate and pistillate flower |
Poinsettia |
| III. | Fruit-like inflorescence |
Many sessile staminate flowers on the top and pistillate flowers at the base and sterile flowers in between |
Ficus |
| IV. | Fleshy axis of inflorescence |
Many stalked staminate flowers at the base and |
Colocasia |
The correct pair is:
Read the following lists:
| List -I | List -II | ||
| (A) | Gall flowers | (I) | Theobroma |
| (B) | Sympodial axis | (II) | Bougainvillea |
| (C) | Achlamydeous | (III) | Ficus |
| (D) | Cauliflory | (IV) | Euphorbia |
| Hamelia |
The correct match is
