Discuss in brief morphological criteria of classification of “ Races”

 Morphological criteria of classification of Races: Humans are often defined by easily observable physical traits like skin and hair colour, hair form, characteristic features of nose, eyes, lips and face.

In the beginning, only this criterion was used for the purpose of human taxonomy. The morphological traits have polygenic inheritance, where genotype-phenotype relationships are not clearly known. 

These characters are adaptive in nature, and that is a fundamental criticism used against these traits to measure genetic distance between human populations.

Oliver and Howells emphasised the use of metric traits and morphological averages as an exploratory device in human taxonomy.

The morphological traits fall into two major categories:

1) Somatoscopic traits, which do not easily lend themselves to exact measurement and based on visual observation alone.

2) Anthropometric traits, which can be exactly measured based on standardized methods, like stature, head length, head breadth and other body measurements.

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