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Members of a barley plant species show varying levels of partial resistance to the leaf rust, *Puccinia hordei* - VCE - SSCE Biology - Question 8 - 2008 - Paper 1
Question 8
Members of a barley plant species show varying levels of partial resistance to the leaf rust, *Puccinia hordei*. The graph below shows the distribution of a populati... show full transcript
Worked Solution & Example Answer:Members of a barley plant species show varying levels of partial resistance to the leaf rust, *Puccinia hordei* - VCE - SSCE Biology - Question 8 - 2008 - Paper 1
Step 1
B. polygenic inheritance.
Answer
The varying levels of resistance to leaf rust in barley plants suggest that multiple genes are influencing this trait. This is characteristic of polygenic inheritance, where several genes contribute to a single effect, resulting in a continuum of traits in the population.