Reproduction in Plants Test - 1

Explanation:

Budding is used by unicellular plants; like yeast. Yeast is a fungus and fungi are also known as non-green plants. The yeast cell produces a bud which gets its own nucleus. The bud develops to certain size and detaches from the mother cell to produce the new yeast.

Explanation:

Seeds of some plants are light-weight and some hair-like or wing-like structures are present on them. Such seeds float on air and are thus dispersed by wind. Example: Dandelion, maple, drumstick, etc.

Explanation:

The main female reproductive parts are the carpels, which are fused together in most flowers to form a pistil.

Explanation:

When a new plant is developed by a vegetative part; such as root, stem or leaf; it is known as vegetative propagation. The leaf of bryophyllum produces new plants through its notches.

Explanation:

A pollen tube is part of the male gametophyte of seed plants. It acts as a conduit to transport the male gamete cells from the pollen grain, either from the stigma (in flowering plants) to the ovules.

Explanation:

Cloning is the process of producing similar populations of genetically identical individuals that occurs in nature when organisms such as bacteria, insects or plants reproduce asexually.

Explanation:

The  flowers  which  contain  either only the pistil or only the stamens are called unisexual flowers.  The  flowers which contain both stamens and pistil are  called  bisexual  flowers.  Corn, papaya   and   ucumber   produce unisexual  flowers,  whereas  mustard,rose and petunia have bisexual flowers.

Explanation:

Grafting is performed between two plants of closely related varieties. The plant of which the root system is to be taken is called stock and the other of which shoot system is to be used is known as scion
Stock usually bears strong root system (e.g., Desi mango) and scion has a desired variety of flowers or fruits (e.g., Dussehri mango), but with a weak root system. The success of the grafting mostly depends upon the union of the cambium of scion and stock which results in organic connection between them.

Explanation:

Dicotyledonae consists of plants having seeds with two cotyledons and the plants are called dicotyledonous plant. Gram, mango, neem, sunflower all are dicotyledonous plant.

Explanation:

The fusion of the male gamete and the female gamete is called fertilization. When pollen settles on top of the stigma, it germinates to produce a pollen tube. The pollen tube enters the ovary through the style. Male nuclei are transferred to the ovary, through the pollen tube.