Question

Choose the correct option:
Replum is present in the ovary of
a) Sunflower
b) Pea
c) Lemon
d) Mustard

Answer 1

Hint: Replum is a false septum that divides the ovary into multiple locules as it reaches the maturity. This structure can be found in the members of Brassicaceae.

Complete answer:
In certain plants a type of false septum develops in the ovary as they reach maturity. This false septum is called replum. The replum usually develops from the ovarian wall as in unilocular ovary. This type of development has been widely noticed by the members of Brassicaceae. In the members of Brassicaceae the ovaries are usually unilocular but at maturity they start appearing bilocular due the development of replum.

Mustard, scientifically named Brassica nigra, is a representative of the angiosperm family Brassicaceae.

Thus, option d would be a correct choice for this question.
We may conclude that Replum is present in the ovary of mustard.

Additional information:
The ovary is the basal part of the gynoecium; it contains ovules that develop into the seed after fertilization. The may be divided into chambers termed as locules. Depending on the number of chambers, ovaries may be unilocular as seen in pea, bilocular as seen in tomato, trilocular as seen in lily etc. The ovules remain attached to the walls of the ovary through a notch like structure called placenta. There may be one or more ovules present in each locule. The arrangement of ovules inside the ovary may be the characteristic feature of a given angiosperm family. This arrangement is known as placentation. Placentation can be guessed by looking at the arrangement of seeds in fruit to a quiet extent.

Note: Ovary is that floral part which develops into a fruit post- fertilization. It may or may not be divided into locules and contains ovules attached to its walls.