NEET > Biology Class 12 > Reproduction In Organisms in One Shot (NCERT)
Reproduction In Organisms in One Shot (NCERT) Video Lecture - Biology Class 12 - NEET
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FAQs on Reproduction In Organisms in One Shot (NCERT) Video Lecture - Biology Class 12 - NEET
| 1. What is reproduction in organisms? |  |
Ans. Reproduction in organisms refers to the biological process through which new individuals of the same species are produced. It is essential for the survival and continuation of a species. Reproduction can occur either through sexual or asexual means, depending on the type of organism.
| 2. What are the different modes of reproduction in organisms? | |
Ans. Organisms can reproduce through various modes. Asexual reproduction involves the production of offspring without the involvement of gametes, such as binary fission, budding, and spore formation. Sexual reproduction involves the fusion of male and female gametes to form offspring, as seen in plants, animals, and humans.
| 3. How does asexual reproduction occur in organisms? | |
Ans. Asexual reproduction is a mode of reproduction where offspring are produced from a single parent without the involvement of gametes. It is commonly observed in organisms like bacteria, fungi, and plants. Asexual reproduction occurs through processes like binary fission, where the parent cell divides into two identical daughter cells, or budding, where a small outgrowth forms on the parent organism and eventually detaches to become a new individual.
| 4. What is sexual reproduction and why is it important in organisms? | |
Ans. Sexual reproduction is a mode of reproduction involving the fusion of male and female gametes. It is crucial for genetic variation and evolution in organisms. Through sexual reproduction, offspring inherit genetic material from both parents, resulting in a diverse population with unique combinations of traits. This diversity increases the chances of survival and adaptation to changing environments.
| 5. What are the advantages and disadvantages of asexual reproduction? | |
Ans. Asexual reproduction offers certain advantages such as rapid reproduction, efficient colonization, and the ability to reproduce without a mate. It allows organisms to quickly populate favorable environments. However, asexual reproduction leads to limited genetic diversity and lack of adaptation to changing environments. As all offspring are genetically identical to the parent, they may be more susceptible to diseases or environmental changes that the parent is vulnerable to.
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