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In the Australian human population, when collecting data about the frequency of different phenotypes at the ABO blood group locus, it is possible to group all members of the population into four phenotypic classes - VCE - SSCE Biology - Question 6 - 2006 - Paper 1
Question 6
In the Australian human population, when collecting data about the frequency of different phenotypes at the ABO blood group locus, it is possible to group all member... show full transcript
Worked Solution & Example Answer:In the Australian human population, when collecting data about the frequency of different phenotypes at the ABO blood group locus, it is possible to group all members of the population into four phenotypic classes - VCE - SSCE Biology - Question 6 - 2006 - Paper 1
Step 1
This is an example of
Answer
The correct answer is D. discontinuous variation.
In the context of the ABO blood group system, individuals can be categorized into distinct blood types (A, B, AB, and O). This clear categorization into specific classes signifies discontinuous variation, where the traits are not on a spectrum but rather fall into distinct categories.
In contrast:
- Hybridisation involves the crossing of different species or varieties, which does not apply here.
- Continuous variation refers to traits that can take on a range of values, such as height or skin color.
- Polygenic inheritance refers to traits controlled by multiple genes, which is not relevant in this case as blood type follows a discrete inheritance pattern.