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Assertion: Variations are important for ...

Assertion: Variations are important for the process of evolution.
Reason: Meiosis increases the genetic variability in the population of organisms from one generation ot the next.

A

If both assertion and reason are true and reason is the correct explantion of assertion

B

If both assertion and reason are true but reason is not the correct explnantion of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the assertion-reason question, we will analyze each statement and determine their truth values and the relationship between them. ### Step-by-Step Solution: 1. **Understand the Assertion**: - The assertion states that "Variations are important for the process of evolution." - This statement is true because variations in traits among individuals in a population provide the raw material for natural selection. Without variations, evolution cannot occur as there would be no differences for natural selection to act upon. 2. **Understand the Reason**: - The reason states that "Meiosis increases the genetic variability in the population of organisms from one generation to the next." - This statement is also true. Meiosis is a type of cell division that reduces the chromosome number by half and leads to the formation of gametes. During meiosis, processes such as crossing over and independent assortment create new combinations of alleles, thus increasing genetic variability. 3. **Evaluate the Relationship**: - Now, we need to determine if the reason correctly explains the assertion. - While both statements are true, the reason (meiosis increasing genetic variability) does not directly explain why variations are important for evolution. Variations are important because they provide the basis for natural selection, but the reason focuses specifically on the mechanism (meiosis) that generates those variations. 4. **Choose the Correct Option**: - Based on the analysis, both the assertion and reason are true, but the reason does not serve as the correct explanation for the assertion. - Therefore, the correct answer is option B: "Both assertion and reason are true, but reason is not the correct explanation of assertion." ### Final Answer: **Option B: Both assertion and reason are true, but reason is not the correct explanation of assertion.** ---
To solve the assertion-reason question, we will analyze each statement and determine their truth values and the relationship between them. ### Step-by-Step Solution: 1. **Understand the Assertion**: - The assertion states that "Variations are important for the process of evolution." - This statement is true because variations in traits among individuals in a population provide the raw material for natural selection. Without variations, evolution cannot occur as there would be no differences for natural selection to act upon. ...
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