The percentages of left-handed people among the males and females of Andhra Pradesh tribals in India were found to be 15.49 and 7.79, and in Hindus 6.9 and 4.65. The difference between the sexes among tribals is significant. The tribal people studied were Koya Doras, Sugalis {or Lambadis), and Konda Reddis. It is suggested that similar quantitative studies of left-handedness should be made in other tribal and aboriginal populations before they are culturally conditioned to right-handedness.

The study of middle phalangeal hair on a sample of some 5000 nonrelated subjects of both sexes and different age groups, representing 11 South Indian populations, has shown very limited sex and age variability. The frequencies fall within the general range of Indian population groups. Most of the groups tested show genetic homogeneity.

The palmar a-b ridge count has been examined in the Gujar Pasis and Kureel Chamars and compared to other Indian populations.

The PTC taste threshold distribution has been examined among the Rastogis and compared to those of other Indian caste groups of Uttar Pradesh.

The ability to smell HCN has been examined in a sample of 2619 subjects from Hyderabad, Andhra Pradesh, belonging to different Indian ethnic groups. One single antimode, between concentrations of 5% and 10%, has been found. No sex nor ethnic differences were noted. Previous claims of possible sex-linked inheritance could not be confirmed.