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Assertion : A single outcross often help...

Assertion : A single outcross often helps to overcome inbreeding depression.
Reason : Out-crossing is best breeding method for increasing milk productivity.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

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

C

If assertion is true bur reason is false.

D

if both assertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Understand the Assertion The assertion states: "A single outcross often helps to overcome inbreeding depression." - **Inbreeding depression** refers to the reduced biological fitness in a given population due to inbreeding, which often leads to a loss of vigor and increased susceptibility to diseases. - **Outcrossing** involves breeding individuals from different genetic backgrounds, which can introduce new genetic material into the population. This can help restore vigor and reduce the negative effects of inbreeding. ### Step 2: Evaluate the Assertion - The assertion is true because a single outcross can indeed help to overcome the negative effects of inbreeding depression by introducing genetic diversity. ### Step 3: Understand the Reason The reason states: "Outcrossing is the best breeding method for increasing milk productivity." - Outcrossing can lead to improved traits, including milk production, by enhancing genetic diversity and vigor in livestock. ### Step 4: Evaluate the Reason - The reason is also true because outcrossing is known to improve milk yield and overall productivity in dairy animals. ### Step 5: Determine the Relationship Between Assertion and Reason - While both the assertion and the reason are true, the reason does not directly explain the assertion. The assertion focuses on overcoming inbreeding depression, while the reason discusses milk productivity. ### Step 6: Conclusion - Since both the assertion and reason are true, but the reason is not the correct explanation of the assertion, the correct answer is: **Option B** - Both assertion and reason are true, but reason is not the correct explanation of assertion. ---
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