Question

The term ‘polyadelphous’ is related to
A. Corolla
B. Calyx
C. Gynoecium
D. Androecium

Answer 1

Hint: The various parts of the plant have different features which make the fertilization and formation of fruit possible. The presence of both male and female reproductive parts in sexual reproduction is very important. The female gametophytes are usually very attractive to attract insects to pollinate them.

Complete answer:
There are various parts of the plant, some make the male gametophyte while some are the female gametophyte’s parts. Their whorls are given a different name so let us see the terms in the question.
Option A: Corolla: the petals of the flowers are called the corolla. Petals are accompanied by the sepals. Sepals lie beneath the corolla.
Option B: Calyx: the sepals collectively grown are called the calyx. They are grown below the petals that make up the corolla.
Option C: Gynoecium: it is the female reproductive part. It is the innermost part of the female gametophyte. It has pistils in it and is surrounded usually by the male gametophyte or stamens only.
Option D: Androecium: the male reproductive part is the androecium. They have filaments when these filaments are joined to make groups but the anthers remain separate, that condition is called polyadelphous. It happens in citrus.

So the answer is option D: Androecium.

Note: There is another term polyandrous- it is when the stamens are free and more in number. The polyadelphous is when the filaments are collected or united in groups having anthers free. Corchorus is an example of polyandrous. The aggregate of stamens in the flower makes the androecium.