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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 with desirable traits are chosen to reproduce. This selective process favors the alleles associated with those traits, causing their frequency to rise in subsequent generations. As a result, there will be a higher proportion of offspring exhibiting the desired phenotypes, reflecting the deliberate enhancement of certain characteristics, such as growth rate, disease resistance, and the colour and oil content of the fish meat.