Photo AI
Based on the information in the graph, which one of the following is most likely? 1 - VCE - SSCE Biology - Question 28 - 2020 - Paper 1
Question 28
Based on the information in the graph, which one of the following is most likely? 1. The founder effect can explain the change in allele frequency in the first thre... show full transcript
Worked Solution & Example Answer:Based on the information in the graph, which one of the following is most likely? 1 - VCE - SSCE Biology - Question 28 - 2020 - Paper 1
Step 1
1. The founder effect can explain the change in allele frequency in the first three generations.
Answer
This statement can be evaluated by considering if a small group from a larger population established a new population, which can lead to changes in allele frequency due to limited genetic diversity. The graph does not provide evidence to support this scenario.
Step 2
Step 3
3. The appearance of Allele 3 after Generation 3 may be explained by gene flow.
Answer
Gene flow refers to the transfer of alleles or genes from one population to another. The emergence of Allele 3 in the later generations could be consistent with this concept, suggesting it was introduced through migration or interbreeding with another population.
Step 4
4. A bottleneck event occurred between Generation 7 and Generation 9.
Answer
A bottleneck event could lead to a dramatic reduction in genetic variation and subsequent changes in allele frequencies. However, the graph suggests a more gradual change rather than a sudden drop in diversity, making this statement less likely.