Reproduction in plants

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 Short Questions/ Answers

Q.1 Explain the importance of reproduction.

Ans. Reproduction is crucial for the continuation of species, ensuring genetic diversity and adaptation to environmental changes. It contributes to the overall health and sustainability of ecosystems, maintaining the balance of various populations.

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Q. 2 Individual that are produced asexually are indentical to their parents plants. Inquire, why is that so?

Ans. Individuals produced asexually, such as plants, are identical to their parents because asexual reproduction involves the creation of offspring without the fusion of gametes. In plants, this commonly occurs through methods like cloning, runners, or tubers, resulting in genetic continuity. 

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Q.3 Explain the advantages of sexual reproduction over asexual reproduction?

Ans. Sexual reproduction offers genetic diversity, enhancing adaptability to changing environments. It promotes the elimination of harmful mutations through recombination, leading to healthier offspring. 

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Q.4 How does strawberry reproduce through stolons?

Ans. Strawberries reproduce through stolons by producing above-ground runners that develop into new plants.

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Q.5 Describe the layering method for growing plants.

Ans. Layering involves bending a branch of a plant, making a small incision, and burying the wounded part in soil, encouraging the development of roots and eventually leading to the growth of a new independent plant. This method enables propagation without detaching the new plant from the parent.

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Long Questions

  Q.1 Observation the process of fertilization in plants and changes that take place in a flower after fertilization conclude and explain your observation.

Ans. Upon observing the process of fertilization in plants, notable changes occur in the flower post-fertilization. Following successful pollination, the ovary develops into a fruit, while the ovule transforms into a seed. Petals may wither, and the ovary enlarges to protect the developing seeds. Eventually, the flower undergoes senescence. This transformative journey underscores the vital role of fertilization in plant reproduction, ensuring the continuation of the species through seed and fruit formation.

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Q. 2 Describe the different ways of vegetative propagation.

Ans. Vegetative propagation involves various methods for reproducing plants asexually. Common techniques include cutting, where a portion of a plant (stem, leaf, or root) develops into a new individual. Runners or stolons are horizontal stems producing new plants. Suckers emerge from the base of the parent plant, forming new shoots. Tuber division involves separating tubers into sections for planting. Each method offers distinct advantages, contributing to the diversity of vegetative propagation strategies.

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Q.3 Ali has two different plants. One plant grows beautiful flowers while the other has the ability to grow very quickly. He wants to combine both traits. how ca he do so?

  Ans. Ali can achieve the desired combination of traits by employing a method such as selective breeding or hybridization. By cross-pollinating the plant with beautiful flowers and the one with rapid growth, he can potentially create offspring that inherit both traits. Selecting and cultivating the desired characteristics in successive generations can further refine the hybrid plants. This intentional crossbreeding allows for the development of a new plant with both the beauty of the flowers and the rapid growth capability.

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Q. Individuals that are produced asexually are identical to their parents. why is that so?

Ans. Asexually produced individuals inherit all their genetic material from a single parent, resulting in no genetic variation. Therefore, they are genetically identical to their parent.

Q. Describes the importance of artificial propagation in agriculture.

Ans. Artificial propagation in agriculture allows for controlled breeding, ensuring desirable traits in crops and livestock. It facilitates increased yield, genetic diversity, and disease resistance in agricultural production.