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Differentiation & Dedifferentiation Video Lecture | Biology Class 11 - NEET

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FAQs on Differentiation & Dedifferentiation Video Lecture - Biology Class 11 - NEET

1. What is differentiation and dedifferentiation?
Ans. Differentiation refers to the process by which cells become specialized in structure and function, acquiring specific characteristics to perform specific tasks. Dedifferentiation, on the other hand, is the reverse process in which specialized cells lose their specialized features and revert to a more primitive or unspecialized state.
2. What are the factors that influence differentiation and dedifferentiation?
Ans. Several factors can influence the processes of differentiation and dedifferentiation in cells. These factors include genetic factors, environmental cues, signaling molecules, and changes in the cellular microenvironment. Additionally, cellular stress, injury, and certain diseases can also trigger dedifferentiation.
3. How does differentiation contribute to the development of multicellular organisms?
Ans. Differentiation plays a crucial role in the development of multicellular organisms by allowing cells to specialize and form different tissues and organs. Through differentiation, cells acquire distinct structures and functions that enable them to carry out specific tasks necessary for the overall functioning of the organism.
4. Can dedifferentiation occur in mature organisms?
Ans. Yes, dedifferentiation can occur in mature organisms. While it is more common during early stages of development or in response to injury, certain cells in adults retain the ability to dedifferentiate. For example, in some organisms, such as salamanders, dedifferentiation allows for tissue regeneration.
5. How is dedifferentiation related to cancer development?
Ans. Dedifferentiation can be associated with the development of cancer. In certain cases, cells may lose their specialized features and revert to a less differentiated state, leading to uncontrolled cell growth and the formation of tumors. This dedifferentiation can contribute to the aggressiveness and metastatic potential of cancer cells. Understanding the mechanisms underlying dedifferentiation is crucial in developing effective cancer treatments.
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