Reproduction in Organisms explains how living organisms produce new individuals and ensure continuity of life. This category focuses on the modes, mechanisms, and significance of reproduction in plants and animals, making it suitable for Class 11–12 students , NEET aspirants , and undergraduate learners .
In this section, you will study:
Asexual reproduction and its various forms
Sexual reproduction and its basic concepts
Reproductive cycles in different organisms
Events of sexual reproduction such as gametogenesis and fertilization
Differences between asexual and sexual reproduction
Reproductive strategies in plants and animals
NCERT-based explanations, diagrams, MCQs, and exam-oriented questions
The content is structured to build clear conceptual understanding , improve comparison-based and process-oriented answers , and help students perform confidently in school examinations, NEET, and undergraduate assessments .
Develop a strong foundation in reproductive biology to understand how life is sustained across generations.
Q. In which type of reproduction do plants produce seeds without fertilization?
A.
Asexual reproduction
B.
Apomixis
C.
Sexual reproduction
D.
Vegetative propagation
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Solution
Apomixis is a form of asexual reproduction where seeds are produced without fertilization, allowing for the offspring to be genetically identical to the parent.
Correct Answer:
B
— Apomixis
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Q. What is the main advantage of sexual reproduction in plants?
A.
Clonal propagation
B.
Genetic diversity
C.
Rapid population increase
D.
No need for pollinators
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Solution
The main advantage of sexual reproduction is genetic diversity, which can enhance adaptability and survival.
Correct Answer:
B
— Genetic diversity
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Q. What is the primary advantage of sexual reproduction in plants?
A.
Clonal propagation
B.
Genetic diversity
C.
Rapid population increase
D.
No need for pollinators
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Solution
The primary advantage of sexual reproduction is genetic diversity, which enhances adaptability and survival in changing environments.
Correct Answer:
B
— Genetic diversity
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Q. What is the primary method of asexual reproduction in plants?
A.
Budding
B.
Fragmentation
C.
Pollination
D.
Fertilization
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Solution
Fragmentation is a common method of asexual reproduction in plants where a part of the plant breaks off and develops into a new individual.
Correct Answer:
B
— Fragmentation
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Q. What is the role of the seed coat?
A.
Nourishment for the embryo
B.
Protection of the embryo
C.
Attraction of pollinators
D.
Photosynthesis
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Solution
The seed coat serves to protect the embryo from physical damage and desiccation during dormancy.
Correct Answer:
B
— Protection of the embryo
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Q. What is the term for the transfer of pollen from the male anther to the female stigma?
A.
Fertilization
B.
Pollination
C.
Germination
D.
Seed dispersal
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Solution
Pollination is the process of transferring pollen from the male anther to the female stigma, which is essential for fertilization.
Correct Answer:
B
— Pollination
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Q. What type of plant life cycle alternates between a haploid gametophyte and a diploid sporophyte?
A.
Monocarpic
B.
Dioecious
C.
Alternation of generations
D.
Annual
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Solution
The alternation of generations is a life cycle characteristic of plants where they alternate between a haploid gametophyte and a diploid sporophyte.
Correct Answer:
C
— Alternation of generations
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Q. What type of plant reproduction involves the use of runners or stolons?
A.
Asexual reproduction
B.
Sexual reproduction
C.
Cross-pollination
D.
Self-pollination
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Solution
Asexual reproduction can involve runners or stolons, which are horizontal stems that produce new plants at their nodes.
Correct Answer:
A
— Asexual reproduction
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Q. Which of the following is a characteristic of monocotyledonous plants?
A.
Two seed leaves
B.
Parallel leaf venation
C.
Woody stems
D.
Taproot system
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Solution
Monocotyledonous plants typically have parallel leaf venation, distinguishing them from dicots which usually have net-like venation.
Correct Answer:
B
— Parallel leaf venation
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Q. Which of the following is a characteristic of wind-pollinated plants?
A.
Brightly colored flowers
B.
Strong fragrance
C.
Large amounts of lightweight pollen
D.
Nectar production
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Solution
Wind-pollinated plants typically produce large amounts of lightweight pollen to increase the chances of successful pollination.
Correct Answer:
C
— Large amounts of lightweight pollen
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Q. Which of the following is NOT a method of vegetative propagation?
A.
Cuttings
B.
Layering
C.
Grafting
D.
Cross-pollination
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Solution
Cross-pollination is a method of sexual reproduction, not vegetative propagation, which involves the asexual reproduction of plants.
Correct Answer:
D
— Cross-pollination
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Q. Which part of the flower develops into a fruit after fertilization?
A.
Stamen
B.
Ovary
C.
Petal
D.
Sepal
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Solution
The ovary of the flower develops into a fruit after fertilization, enclosing the seeds.
Correct Answer:
B
— Ovary
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Q. Which part of the flower develops into the fruit?
A.
Stamen
B.
Ovary
C.
Petal
D.
Sepal
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Solution
The ovary of the flower develops into the fruit after fertilization, enclosing the seeds.
Correct Answer:
B
— Ovary
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Q. Which type of plant is characterized by having both male and female reproductive structures?
A.
Dioecious
B.
Monoecious
C.
Hermaphroditic
D.
Unisexual
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Solution
Monoecious plants have both male and female reproductive structures on the same individual.
Correct Answer:
B
— Monoecious
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