Question:

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Combining all desirable character in a single cultivar of mango is difficult
Reason (R) : Mango is a homogeneous crop of suspected diploid origin

Show Hint

Mango has a basic chromosome number of $x = 10$, making the somatic chromosome count $2n = 4x = 40$.
  • Both (A) and (R) are true and (R) is the correct explanation of (A).
  • Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  • (A) is true but (R) is false.
  • (A) is false but (R) is true.
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The Correct Option is C

Solution and Explanation



Step 1: Understanding the Concept:

Hybridization challenges in mango breeding stem from its high levels of heterozygosity, polyploidy, and complex floral biology.

Step 2: Detailed Explanation:

- Assertion (A) is true: Combining regular bearing, good fruit quality, attractive color, fiberless pulp, and disease resistance in a single cultivar is difficult due to high heterozygosity and severe inbreeding depression.
- Reason (R) is false: Mango (Mangifera indica) is a highly heterozygous (not homogeneous) and allotetraploid ($2n = 40$) (not diploid) crop. This makes the statement in the reason incorrect.

Step 3: Final Answer:

Assertion (A) is correct, but Reason (R) is false.
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