Question:
Given below are two statements:
Statement I: Bilateral cryptorchid males show more or less normal sexual desire but are sterile
Statement II: Cryptorchid male can be used for breeding purposes
In light of the above statements, choose the correct answer from the options given below.
Given below are two statements:
Statement I: Bilateral cryptorchid males show more or less normal sexual desire but are sterile
Statement II: Cryptorchid male can be used for breeding purposes
In light of the above statements, choose the correct answer from the options given below.
Statement I: Bilateral cryptorchid males show more or less normal sexual desire but are sterile
Statement II: Cryptorchid male can be used for breeding purposes
In light of the above statements, choose the correct answer from the options given below.
Show Hint
Remember: Leydig cells (which make testosterone) are heat-tolerant, while seminiferous tubules (which make sperm) are heat-sensitive.
Therefore, a bilateral cryptorchid is masculine but sterile, and should never be used for breeding due to the hereditary nature of the defect.
Therefore, a bilateral cryptorchid is masculine but sterile, and should never be used for breeding due to the hereditary nature of the defect.
Updated On: Aug 24, 2026
- Both Statement I and Statement II are true.
- Both Statement I and Statement II are false.
- Statement I is true but Statement II is false.
- Statement I is false but Statement II is true.
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Cryptorchidism is a developmental defect in which one (unilateral) or both (bilateral) testicles fail to descend into the scrotum.
Understanding the impact of body temperature on testicular cell types is key to understanding this condition.
Step 2: Detailed Explanation:
Let us analyze each statement:
- Statement I: In cryptorchidism, the retained testicle resides inside the abdominal cavity or inguinal canal.
The higher core body temperature inhibits spermatogenesis (which requires a temperature \(2^\circ\text{C}\) to \(4^\circ\text{C}\) lower than body core temperature), leading to sterility in bilateral cryptorchids.
However, Leydig cells, which produce testosterone, are not affected by core body temperature and function normally.
Consequently, bilateral cryptorchid males maintain normal secondary male characteristics and sexual desire (libido).
Thus, Statement I is true.
- Statement II: Cryptorchidism is a known heritable genetic defect across domestic animal species.
Breeding cryptorchid males (even unilateral ones, which may still be fertile) is contraindicated because they pass this genetic defect to their male offspring.
Moreover, retained testicles have a significantly higher risk of developing neoplasms (like Sertoli cell tumors).
Thus, Statement II is false.
Step 3: Final Answer:
In light of these findings, Statement I is true but Statement II is false.
Cryptorchidism is a developmental defect in which one (unilateral) or both (bilateral) testicles fail to descend into the scrotum.
Understanding the impact of body temperature on testicular cell types is key to understanding this condition.
Step 2: Detailed Explanation:
Let us analyze each statement:
- Statement I: In cryptorchidism, the retained testicle resides inside the abdominal cavity or inguinal canal.
The higher core body temperature inhibits spermatogenesis (which requires a temperature \(2^\circ\text{C}\) to \(4^\circ\text{C}\) lower than body core temperature), leading to sterility in bilateral cryptorchids.
However, Leydig cells, which produce testosterone, are not affected by core body temperature and function normally.
Consequently, bilateral cryptorchid males maintain normal secondary male characteristics and sexual desire (libido).
Thus, Statement I is true.
- Statement II: Cryptorchidism is a known heritable genetic defect across domestic animal species.
Breeding cryptorchid males (even unilateral ones, which may still be fertile) is contraindicated because they pass this genetic defect to their male offspring.
Moreover, retained testicles have a significantly higher risk of developing neoplasms (like Sertoli cell tumors).
Thus, Statement II is false.
Step 3: Final Answer:
In light of these findings, Statement I is true but Statement II is false.
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