MCQ
A flower is actinomorphic when it is divisible into two
  • A
    Halves having equal number of sepals and petals
  • Similar halves by a vertical division in any plane
  • C
    Similar halves by a vertical division in one plane only
  • D
    Halves having similar parts by a transverse division

Answer

Correct option: B.
Similar halves by a vertical division in any plane
b
(b) A flower that can be vertically divided in two equal halves by any vertical division passing through centre.

Such flowers are also called radially symmetrical, e.g., Brassica.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Value of roman $Q_{10}^0$ for respiration is
Identify the correct match for the given diagram
Stems of potato, ginger and turmeric are modified to
$A$ : Triple fusion is associated with the sexual reproduction in all spermatophytes.
$R$ : It is required to form definitive nucleus as nutritive tissue.
During food chain the maximum energy is stored in
Which of the following shows maximum genetic diversity in India?
Tropical regions show greatest level of species richness because

$A$. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification.

$B$. Tropical environments are more seasonal.

$C$. More solar energy is available in tropics.

$D$. Constant environments promote niche specialization.

$E$. Tropical environments are constant and predictable.

Choose the correct answer from the options given below.

Which of the following effects of auxins on plants is the basis for commercial application
Two enzymes responsible for restricting the growth of bacteriophages in $E .$ coli were isolated. One was methylase and other was restriction endonuclease. What is the significance of methylase?
Choose correct statement for ethylene and mark correct option :
(i) It have specific effects on cytokinesis.
(ii) It is a modified form of adenine.
(iii) It does not occur naturally in plants.
(iv) Isolated from coconut milk.
(v) It is highly effective in fruit ripening.
(vi) It enhances the respiration rate during ripening of the fruits.
(vii) It breaks seed and bud dormancy, initiates germination in peanut seeds, sprouting of potato tubers.