Question

A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable cause for the above situation is:

• A. Plant is dioecious and bears only pistillate flowers.
• B. Plant is dioecious and bears both pistillate and staminate flowers.
• C. Plant is monoecious and bears only staminate flowers.
• D. Plant is dioecious and bears only staminate flowers.

Answer 1

The correct option is D Plant is dioecious and bears only staminate flowers.

A dicotyledonous plant with flowers but no fruits and seeds could be a staminate (male) flower, with the plant being dioecious, that is, bearing male and female flowers on two separate plants. Here, the plant bearing female or pistillate flowers will give rise to friuts and seeds. These plants undergo cross pollination, majorly through Anemophily.

Example, Carica papaya

So, the correct answer is 'Plant is dioecious and bears only staminate flowers.'