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Double fertilization is a unique process in angiosperms where two sperm cells fuse with different cells in the embryo sac. Steps of Double Fertilization: 1. Pollination: Pollen grains land on the stigma and germinate, forming a pollen tube. 2. Pollen Tube Growth: The tube grows through the style and reaches the ovule. 3. Release of … Read more
Artificial vegetative propagation allows farmers to reproduce plants with desirable traits, increase yield, and cultivate plants that may not grow well from seeds. Techniques like grafting and tissue culture improve plant quality and disease resistance. Related Questions: Define cloning. Which process of a plant is supposed to be a cloning? Enlist any two suitable conditions … Read more
The ovary contains ovules, which develop into seeds after fertilization. The ovary itself matures into fruit, protecting and dispersing the seeds. Related Questions: Define cloning. Which process of a plant is supposed to be a cloning? Enlist any two suitable conditions for the germination of a seed. Explain the structure of the embryonic stem. … Read more
Apomixis is a form of asexual reproduction in plants where seeds develop without fertilization, producing genetically identical offspring. Related Questions: Define cloning. Which process of a plant is supposed to be a cloning? Enlist any two suitable conditions for the germination of a seed. Explain the structure of the embryonic stem. Explain the role … Read more
Pollination is the transfer of pollen from the anther to the stigma of a flower. It is classified into two types: self-pollination (within the same flower or plant) and cross-pollination (between flowers of different plants of the same species). Related Questions: Define cloning. Which process of a plant is supposed to be a cloning? Enlist … Read more
Vegetative propagation is a form of asexual reproduction in which new plants grow from vegetative parts such as roots, stems, or leaves, rather than from seeds. Related Questions: Define cloning. Which process of a plant is supposed to be a cloning? Enlist any two suitable conditions for the germination of a seed. Explain the … Read more
Natural vegetative propagation occurs when plants reproduce from vegetative parts like stems, roots, or leaves. 1. Runners (Stolons): Horizontal stems that grow along the soil surface and produce new plants at nodes. Example: Strawberry, Grass. 2. Tubers: Swollen underground stems that store food and produce new shoots. Example: Potato. 3. Bulbs: Underground storage organs consisting … Read more
A flower is the reproductive structure of angiosperms (flowering plants). It consists of four major parts: 1. Calyx (Sepals): The outermost whorl, usually green. Protects the flower bud before it opens. 2. Corolla (Petals): Brightly colored to attract pollinators. Contains nectar glands. 3. Androecium (Male Reproductive Organ): Composed of stamens, each with a filament and … Read more
Artificial vegetative propagation is a method used by gardeners and farmers to grow plants more efficiently. 1. Grafting: Involves joining two different plants to combine desirable characteristics. A scion (upper part) is attached to a rootstock (lower part with roots). The grafted plant continues to grow as a single organism. Used in fruit trees like … Read more
Binary Fission in Bacteria: Binary fission is a simple form of asexual reproduction where a single bacterial cell divides into two identical daughter cells. Steps of Binary Fission: 1. DNA Replication: The bacterial chromosome duplicates. 2. Cell Elongation: The cell enlarges, and the replicated DNA moves to opposite ends. 3. Septum Formation: A new cell … Read more