Reproduction in Plants Test - 1

The dispersal in drumstick is by wind. Seeds of urena and xanthium are dispersed by animals.

From the options given, only pollen represents the male gamete structure. Therefore, it will have half the number of chromosomes present in other cells.

Entomophily or insect pollination is a form of pollination, whereby pollen of the plant is distributed by insects.

Seeds contain an embryonic plant enclosed in an outer covering.

After fertilisation, the zygote divides several times to form an embryo within the ovule. The ovule develops tough coating and is gradually converted into a seed. The ovary grows rapidly and ripens to form a fruit.

Sweet potato, asparagus and dahlia is a group of plants which are propagated through underground roots.

The branch of botany comprising the artificial cultivation of cells into mature fruit forming plants is known as tissue culture. Single cells, plant cells without cell walls (protoplasts), pieces of leaves, stems or roots can often be used to generate a new plant on culture media given the required nutrients and plant hormones.

Shoot system is formed by scion in grafting, whereas root system is formed by stock. Grafting is a horticultural technique whereby tissues from one plant are inserted into those of another so that the two sets of vascular tissues may join together.

Ovule integument gets transformed into seed coat. It is the outer protective covering of a seed. It is also called testa.