A problem with using blood type frequencies in human classification is that:
A)it is extremely difficult to collect blood type data
B)blood type is highly influenced by the environment
C)most of the frequencies show a clinal distribution
D)there is very little variation in blood type frequencies from population to population

Question

Quizplus · Accepted Answer

Blood type frequencies do not show a clear-cut pattern that can be used to classify humans into discrete groups. Rather, they exhibit a clinal distribution, meaning that they gradually change from one population to another. As a result, it is difficult to draw clear boundaries between different racial or ethnic groups based solely on blood type frequencies. Additionally, the environment can impact blood type frequencies, but to a much lesser extent than genetic factors. Collection of blood type data is relatively easy, so this does not pose a major problem for using blood type frequencies in human classification. Finally, while there is some variation in blood type frequencies across different populations, this variation is not insignificant enough to render blood type frequencies useless for classification.

A Problem with Using Blood Type Frequencies in Human Classification