In a typical flower, germinating pollen grains pass through several parts of the gynoecium before they reach the ovule. A list of the parts of gynoecium is given below in different combinations. Choose the combination that represents the correct seence of pollen tube pathway/journey:

In a typical flower, the gynoecium (female reproductive part) consists of three main components: the stigma, style, and ovary [1]. The journey of a germinating pollen grain begins when it lands on the stigma, which serves as the receptive terminal surface [1]. Upon germination, the pollen grain produces a pollen tube that grows downward through the elongated, pillar-like style. This tube acts as a conduit to transport male gametes toward the basal part of the gynoecium. Finally, the pollen tube reaches the swollen bottom part known as the ovary, which contains the ovules [1]. Inside the ovary, the male gamete fuses with the egg cell in the ovule to complete fertilization [1]. Therefore, the correct sequence of the pollen tube pathway is Stigma → Style → Ovary.

Sources

1. [1] Science , class X (NCERT 2025 ed.) > Chapter 7: How do Organisms Reproduce? > 7.3.2 Sexual Reproduction in Flowering Plants > p. 121