Question:
Polyploidy refers to
Polyploidy refers to
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Polyploidy is easily induced in newly fertilized fish eggs by applying physical shocks (thermal or hydrostatic pressure) which prevent the extrusion of the second polar body, resulting in triploid (\(3n\)) offspring.
Updated On: Aug 20, 2026
- A chromosome which has replicated but not divided
- Multiple ribosomes present on a single mRNA
- An individual with complete extra sets of chromosomes
- Extra copies of a gene adjacent to each other on a chromosome
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Most eukaryotic organisms are diploid (\(2n\)), meaning they possess two homologous sets of chromosomes (one inherited from each parent).
Genetic manipulations can alter this default chromosome count.
Step 2: Detailed Explanation:
Polyploidy is the genetic condition where a cell or an organism possesses three or more complete, homologous sets of chromosomes (e.g., triploid \(3n\), tetraploid \(4n\), etc.).
In aquaculture, triploidy is induced in species like salmon and trout to make them sterile, redirecting energy from gonad maturation to somatic muscle growth and preventing the deterioration of flesh quality during spawning.
Step 3: Final Answer:
Polyploidy refers to an individual with complete extra sets of chromosomes, which corresponds to option (C).
Most eukaryotic organisms are diploid (\(2n\)), meaning they possess two homologous sets of chromosomes (one inherited from each parent).
Genetic manipulations can alter this default chromosome count.
Step 2: Detailed Explanation:
Polyploidy is the genetic condition where a cell or an organism possesses three or more complete, homologous sets of chromosomes (e.g., triploid \(3n\), tetraploid \(4n\), etc.).
In aquaculture, triploidy is induced in species like salmon and trout to make them sterile, redirecting energy from gonad maturation to somatic muscle growth and preventing the deterioration of flesh quality during spawning.
Step 3: Final Answer:
Polyploidy refers to an individual with complete extra sets of chromosomes, which corresponds to option (C).
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