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Atlantic salmon (Salmo salar) are fish that are farmed in the waters of Tasmania - VCE - SSCE Biology - Question 30 - 2023 - Paper 1
Question 30
Atlantic salmon (Salmo salar) are fish that are farmed in the waters of Tasmania. A selective breeding program was introduced that focused on increasing the growth o... show full transcript
Worked Solution & Example Answer:Atlantic salmon (Salmo salar) are fish that are farmed in the waters of Tasmania - VCE - SSCE Biology - Question 30 - 2023 - Paper 1
Step 1
C. the frequency of alleles for the desired phenotypes will increase over generations.
Answer
In a selective breeding program, individuals that exhibit desirable traits (such as faster growth, disease resistance, and optimal color and oil content) are chosen to breed. This process selectively amplifies the alleles associated with these traits in the population over generations. As a result, through controlled mating practices, the frequency of these advantageous alleles increases within the fish population, leading to more offspring exhibiting these preferred characteristics.