Sexual Reproduction in Flowering Plants Test - 59

The ovary often supports a long style, topped by a sticky stigma. The part of the pistil where pollen is received and it germinates is called the stigma.
Thus, the correct answer is option (B), 'Stigma'.

Corss pollination is when pollen from one plant pollinates flowers on a different plant. With maize, cross-pollination is preferred because it is a monoecious crop with male and female flowers in separate parts of the same plant. So, male part produces a large number of pollen grains, which are then distributed by wind to other female parts of another maize plants.
Thus, the correct answer is option (D), 'Cross pollinated by wind'.

Gymnosperms are spore bearing vascular plants. Hence, their mode of reproduction involves the microspore or the male gametes and the megasporophyll. The fertilization involves the movement and dispersal of male gametes through wind (anemophilous).

Staminal tube is found in Hibiscus. In Hibiscus - a flower's male stamens are composed of the pollen-producing anther atop a stem like filament. Yellow anthers open and are discharge yellow pollen. Each anther is held aloft by a slender, pink filament,each filament is then attached to a pale, pink cylinder, known as a staminal column or stamen tube.
Therefore, the correct answer is option C. 

Pollination is the process by which pollen is transferred from the anther or the male part to the stigma or the female part of the plant thereby enabling fertilization and reproduction.
Thus, the correct answer is option (C), Pollination'.

The wrong statement is " the side of the flower towards the bract is called posterior side"

Geitonogamy is a type of self-pollination in which the pollen from anthers of one flower is transferred to the stigma of another flower of the same plant. Pollination occurs in the same flower of a plant is called Autogamy. It is also a type of self-pollination. Xenogamy and Allogamy are the same things and type of cross-pollination in which pollen grains from the flower of one plant transfer to the stigma of the flower of another plant. Hence, the correct option is B.

Here, the part of the flowers and their labeling are as follows:
Labeling A - Stigma
Labeling B - Anther
Labeling C - Style
Labeling D - Petal
Labeling E - Ovary
Labeling F - Filament
The male reproductive part of the flower is the stamen. The stamen is the pollen-producing reproductive organ of a flower. A stamen consists of a stalk called the filament and an anther that contains pollen. So, labeling B, anther, produces pollen.
The pistil is the female reproductive part of a flower. The pistil, centrally located, typically consists of a swollen base, the ovary, which contains the potential seeds, or ovules; a stalk, or style, arising from the ovary, and a pollen-receptive tip, the stigma, variously shaped and often sticky. So, labeling A, stigma receives pollen.
Petals are modified leaves that surround the reproductive parts of a flower. They are often brightly colored or unusually shaped to attract pollinators. So, labeling D, petals attract insects.
Thus, the correct answer is option (A) - A, B, D.