Briefly discuss serological criteria for Racial Classification.

Racial identification is made on the basis of a number of external and internal physical characteristics. The external physical characteristics are phenotypic characters, which are mostly adaptive in nature, but the internal physical characteristics are genotypic characters, which are strictly hereditary and non-adaptive.

Modem genetics has provided much information regarding the bodily characteristics of man. It has found that phenotypic characters may not tally with genotypic characters when recessive genes are present in the body. As a matter of fact, importance should be given on the genotypic characters while studying the racial criteria.

Previous works on this line were chiefly centred round the external physical characters because the former workers believed those characters as hereditary. In reality, they were not so. Although at present, the views of the scientists have broadened and they have been able to overcome the limitations of their understanding, still we find extensive use of phenotypic characters in racial identification. The study of blood groups, dermatoglyphics etc. are the exceptions.

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