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Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.
Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.
Which one of the following is correct in respect of the above statements?
- a)Both Statement-I and Statement-II are correct
- b)Statement-II is the correct explanation for Statement-I
- c)Statement-I is Correct but Statement II is incorrect
- d)Statement-I is incorrect but Statement-II is correct
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Statement-I: A gene mutation is a change in the DNA sequence of a gene...
Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I Minimal-Genome Cells Evolve as Fast as Normal
- Cells Gene: A gene is a segment of Deoxyribonucleic acid (DNA) that codes for a specific protein or function. Genes are the basic units of heredity and can be inherited from parents or mutated by environmental factors.
- Gene Mutation: A gene mutation is a change in the DNA sequence of a gene that may affect its function or expression. Hence, statement 1 is not correct. Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors. Hence, statement 2 is correct.
- Genome: A genome is the complete set of genetic information of an organism or a virus.
- Genetic Sequencing: It is the process of determining the order of nucleotides or bases (A, G, C, and T) in a DNA or RNA molecule
- Genome Editing: It is a type of genetic engineering in which DNA is inserted, deleted, modified or replaced in the genome of a living organism.
- Genetic Modification: It is the process of changing the DNA of an organism, such as a bacterium, plant or animal, by introducing elements of DNA from a different organism.
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Statement-I: A gene mutation is a change in the DNA sequence of a gene...
Explanation:
Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.
- A gene mutation is a permanent alteration in the DNA sequence that makes up a gene.
- Not all gene mutations lead to changes in the function or expression of the gene.
- Some mutations are silent, meaning they do not affect the protein produced by the gene.
Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.
- Gene mutations can indeed be caused by errors that occur during DNA replication.
- Exposure to radiation, chemicals, or environmental factors can also lead to mutations in genes.
- Other factors such as UV radiation, certain viruses, and lifestyle choices like smoking can also contribute to gene mutations.
Therefore, both statements are not contradictory but rather complementary. Statement-I provides a general definition of gene mutations, while Statement-II explains some of the common causes of gene mutations. Hence, the correct answer is option 'D' - Statement-I is incorrect but Statement-II is correct.
Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.
- A gene mutation is a permanent alteration in the DNA sequence that makes up a gene.
- Not all gene mutations lead to changes in the function or expression of the gene.
- Some mutations are silent, meaning they do not affect the protein produced by the gene.
Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.
- Gene mutations can indeed be caused by errors that occur during DNA replication.
- Exposure to radiation, chemicals, or environmental factors can also lead to mutations in genes.
- Other factors such as UV radiation, certain viruses, and lifestyle choices like smoking can also contribute to gene mutations.
Therefore, both statements are not contradictory but rather complementary. Statement-I provides a general definition of gene mutations, while Statement-II explains some of the common causes of gene mutations. Hence, the correct answer is option 'D' - Statement-I is incorrect but Statement-II is correct.
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Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correctb)Statement-II is the correct explanation for Statement-Ic)Statement-I is Correct but Statement II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'D'. Can you explain this answer?
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Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correctb)Statement-II is the correct explanation for Statement-Ic)Statement-I is Correct but Statement II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correctb)Statement-II is the correct explanation for Statement-Ic)Statement-I is Correct but Statement II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correctb)Statement-II is the correct explanation for Statement-Ic)Statement-I is Correct but Statement II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'D'. Can you explain this answer?.
Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correctb)Statement-II is the correct explanation for Statement-Ic)Statement-I is Correct but Statement II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correctb)Statement-II is the correct explanation for Statement-Ic)Statement-I is Correct but Statement II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correctb)Statement-II is the correct explanation for Statement-Ic)Statement-I is Correct but Statement II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correctb)Statement-II is the correct explanation for Statement-Ic)Statement-I is Correct but Statement II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
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ample number of questions to practice Statement-I: A gene mutation is a change in the DNA sequence of a gene that does not affect its function or expression.Statement-II: Gene mutations can be caused by errors during DNA replication, exposure to radiation or chemicals, or other factors.Which one of the following is correct in respect of the above statements?a)Both Statement-I and Statement-II are correctb)Statement-II is the correct explanation for Statement-Ic)Statement-I is Correct but Statement II is incorrectd)Statement-I is incorrect but Statement-II is correctCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice UPSC tests.
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