Question:
Which one of the following is not an objective of genetic testing? ______________
Which one of the following is not an objective of genetic testing? ______________
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Genetic Testing = Inheritance (Progeny). Grafting = Propagation (Somatic). Don't confuse the two!
Updated On: Aug 20, 2026
- Estimation of heritability
- Estimation of genetic gain
- Estimation of graft incompatibility
- Conducting genetic testing
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
Genetic testing (progeny/clonal testing) is used to assess the genetic worth of parents. The question asks to identify which item is *not* a primary scientific objective of such tests.
Step 2: Detailed Explanation:
• Scientific Objectives: Genetic testing is designed to calculate:
- Heritability (A): The proportion of variation due to genetics.
- Genetic Gain (B): The improvement expected in the next generation.
- Breeding values of the parents and correlations between traits.
• Graft Incompatibility (C): This is a physiological and anatomical issue that occurs when a scion and rootstock fail to fuse properly. While it can have a genetic component, it is studied in the nursery or orchard through "compatibility trials," not through standard "genetic testing" of offspring.
• Logic Check: Option (D) "Conducting genetic testing" is a restatement of the action itself, not a specific *objective*. However, in many exam formats, option (C) is the clear "outlier" because it deals with asexual propagation mechanics rather than hereditary transmission of traits.
Step 3: Final Answer:
Estimation of graft incompatibility is not a primary objective of genetic testing.
Genetic testing (progeny/clonal testing) is used to assess the genetic worth of parents. The question asks to identify which item is *not* a primary scientific objective of such tests.
Step 2: Detailed Explanation:
• Scientific Objectives: Genetic testing is designed to calculate:
- Heritability (A): The proportion of variation due to genetics.
- Genetic Gain (B): The improvement expected in the next generation.
- Breeding values of the parents and correlations between traits.
• Graft Incompatibility (C): This is a physiological and anatomical issue that occurs when a scion and rootstock fail to fuse properly. While it can have a genetic component, it is studied in the nursery or orchard through "compatibility trials," not through standard "genetic testing" of offspring.
• Logic Check: Option (D) "Conducting genetic testing" is a restatement of the action itself, not a specific *objective*. However, in many exam formats, option (C) is the clear "outlier" because it deals with asexual propagation mechanics rather than hereditary transmission of traits.
Step 3: Final Answer:
Estimation of graft incompatibility is not a primary objective of genetic testing.
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