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Consider the following statements:
1. Totipotency is the capacity to generate a whole plant from any cell/explant.
2. Micropropagation is the method of producing thousands of plants through tissue culture.
3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.
Which of the statements given above are correct?
- a)1 and 2 only
- b)2 and 3 only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider the following statements:1. Totipotency is the capacity to ge...
- The whole plants can be regenerated from the explants, i.e., any part of a plant taken out and grown in a test tube, under sterile conditions, in special nutrient media. This capacity to generate a whole plant from any cell/explant is called ‘totipotency’. The method of producing thousands of plants through tissue culture is called ‘micropropagation’. Each of these plants will be genetically identical to the original plant, from which they were grown, i.e., they are somaclones.
- The scientists have even isolated single cells from the plants and, after digesting their cell walls, have been able to isolate the naked protoplasts (surrounded by plasma membranes). The isolated protoplasts from two different varieties of plants – each having a desirable character – can be fused to get hybrid protoplasts, which can be further grown to form a new plant. These hybrids are called ‘somatic hybrids’, while the process is called ‘somatic hybridisation’
Most Upvoted Answer
Consider the following statements:1. Totipotency is the capacity to ge...
The correct answer is option 'A' which means statements 1 and 2 are correct.
Explanation:
1. Totipotency is the capacity to generate a whole plant from any cell/explant.
- Totipotency refers to the ability of a single cell to give rise to a complete organism. In other words, any cell or explant (a small piece of plant tissue) has the potential to develop into a whole plant. This property is significant in plant tissue culture techniques, where specific cells or tissues are cultured in vitro to produce new plants. Thus, statement 1 is correct.
2. Micropropagation is the method of producing thousands of plants through tissue culture.
- Micropropagation, also known as tissue culture or in vitro propagation, is a technique used to produce large numbers of genetically identical plants from a small piece of plant tissue. In this method, plant cells or tissues are grown in a sterile nutrient medium under controlled conditions. The process involves several steps such as initiation, multiplication, rooting, and acclimatization. Through micropropagation, thousands of plants can be generated from a single explant, making it an efficient and rapid method of plant propagation. Therefore, statement 2 is correct.
3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.
- Somatic hybridization is a technique used to create hybrid plants by fusing together protoplasts (cells with the cell wall removed) from different plant species or varieties. The resulting somatic hybrids contain the combined genetic material of both parent plants. However, they are not genetically identical to the original plant from which they were grown. Somatic hybrids exhibit a combination of traits from both parent plants and may possess unique characteristics. Therefore, statement 3 is incorrect.
In conclusion, statements 1 and 2 are correct, while statement 3 is incorrect.
Explanation:
1. Totipotency is the capacity to generate a whole plant from any cell/explant.
- Totipotency refers to the ability of a single cell to give rise to a complete organism. In other words, any cell or explant (a small piece of plant tissue) has the potential to develop into a whole plant. This property is significant in plant tissue culture techniques, where specific cells or tissues are cultured in vitro to produce new plants. Thus, statement 1 is correct.
2. Micropropagation is the method of producing thousands of plants through tissue culture.
- Micropropagation, also known as tissue culture or in vitro propagation, is a technique used to produce large numbers of genetically identical plants from a small piece of plant tissue. In this method, plant cells or tissues are grown in a sterile nutrient medium under controlled conditions. The process involves several steps such as initiation, multiplication, rooting, and acclimatization. Through micropropagation, thousands of plants can be generated from a single explant, making it an efficient and rapid method of plant propagation. Therefore, statement 2 is correct.
3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.
- Somatic hybridization is a technique used to create hybrid plants by fusing together protoplasts (cells with the cell wall removed) from different plant species or varieties. The resulting somatic hybrids contain the combined genetic material of both parent plants. However, they are not genetically identical to the original plant from which they were grown. Somatic hybrids exhibit a combination of traits from both parent plants and may possess unique characteristics. Therefore, statement 3 is incorrect.
In conclusion, statements 1 and 2 are correct, while statement 3 is incorrect.
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Consider the following statements:1. Totipotency is the capacity to generate a whole plant from any cell/explant.2. Micropropagation is the method of producing thousands of plants through tissue culture.3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?
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Consider the following statements:1. Totipotency is the capacity to generate a whole plant from any cell/explant.2. Micropropagation is the method of producing thousands of plants through tissue culture.3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements:1. Totipotency is the capacity to generate a whole plant from any cell/explant.2. Micropropagation is the method of producing thousands of plants through tissue culture.3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:1. Totipotency is the capacity to generate a whole plant from any cell/explant.2. Micropropagation is the method of producing thousands of plants through tissue culture.3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?.
Consider the following statements:1. Totipotency is the capacity to generate a whole plant from any cell/explant.2. Micropropagation is the method of producing thousands of plants through tissue culture.3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements:1. Totipotency is the capacity to generate a whole plant from any cell/explant.2. Micropropagation is the method of producing thousands of plants through tissue culture.3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:1. Totipotency is the capacity to generate a whole plant from any cell/explant.2. Micropropagation is the method of producing thousands of plants through tissue culture.3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?.
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ample number of questions to practice Consider the following statements:1. Totipotency is the capacity to generate a whole plant from any cell/explant.2. Micropropagation is the method of producing thousands of plants through tissue culture.3. Somatic hybrid plants are genetically identical to the original plant, from which they were grown.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice UPSC tests.
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