Directions: In the following questions, a statement of assertion (A) ...
DNA copying is necessary during reproduction because it leads to the transmission of characters from parents to offsprings and brings about variation.
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Directions: In the following questions, a statement of assertion (A) ...
Assertion : DNA copying is necessary during reproduction.
Reason : DNA copying leads to the transmission of characters from parents to offspring.
The correct answer is option 'A'. Let's understand why.
Explanation:
Reproduction and DNA Copying:
- Reproduction is the biological process by which new individuals of the same species are produced. It is essential for the continuity of a species.
- DNA copying, also known as DNA replication, is a crucial step in the process of reproduction. It ensures the transmission of genetic information from parents to offspring.
Role of DNA Copying in Reproduction:
- DNA is the genetic material that carries the hereditary information in all living organisms. It contains the instructions for the development, functioning, and characteristics of an organism.
- During reproduction, DNA needs to be copied because each parent contributes half of the genetic material to the offspring. The process of DNA copying ensures that the complete set of genetic information is passed on to the next generation.
Transmission of Characters:
- The transmission of characters or traits from parents to offspring is governed by the genetic information encoded in DNA.
- DNA copying is essential for the transmission of characters because it ensures that the offspring receive a combination of genetic material from both parents.
- The offspring inherit a unique combination of genes from their parents, which determines their physical attributes, behavior, and other characteristics.
Conclusion:
- The assertion that DNA copying is necessary during reproduction is true because it ensures the transmission of genetic information from parents to offspring.
- The reason that DNA copying leads to the transmission of characters from parents to offspring is also true and provides the correct explanation for the assertion.
Therefore, the correct answer is option 'A' - Both assertion (A) and reason (R) are true, and reason (R) is the correct explanation of assertion (A).
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