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Breeding programmes can be used to increase starch levels in barley plants - Scottish Highers Biology - Question 19 - 2019
Question 19
Breeding programmes can be used to increase starch levels in barley plants. This involves breeding closely related plants with high starch levels for several generat... show full transcript
Worked Solution & Example Answer:Breeding programmes can be used to increase starch levels in barley plants - Scottish Highers Biology - Question 19 - 2019
Step 1
reduce the frequency of heterozygotes
Answer
The primary aim of breeding closely related plants with high starch levels for several generations is to enhance desirable traits, which often leads to a reduction in heterozygosity. By continually breeding these closely related individuals, the population is more likely to become homozygous for the desirable traits, thus causing a reduction in heterozygotes overall. This selection process can help stabilize the high starch trait within the population.