The Incidence and Mendelian Transmission of Mid-Digital Hair in Man*

Bernstein, Marianne Magnus; Burks, Barbara S.

doi:10.1093/oxfordjournals.jhered.a105125

Cited by 27 publications

(14 citation statements)

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“…A relatively higher absence of phalangeal hair in females is in conformity with the less hairy character of females in general. The absence of middle phalangeal hair in this study is the highest one reported as com pared to the reports from Britain: 29% [Brothwell and Molleson, 1965], American (white population): 22% [ Bernstein and Burks, 1942], Egypt: 29-38%, India: 50-60% [Dutta, 1966;Basu, 1967], Japan: 56% and Nepal: 66% [Parmar, 1968]. However the present finding of 79% is com parable to 76% in the Ethiopian population, which belongs to the same racial group [Batmiriam, 1962], The frequency order of pres ence of hair on the middle phalanges (4 > 3 > 5 > 2) reported in all populations studied so far is found true in this study as well.…”

Section: Discussionsupporting

confidence: 46%

“…As for the presumed mode of inheri tance, genetic analysis of sibs and family data by Bernstein and Burks [1942] and Bernstein [1949] supports the hypothesis by Danforth [1921] that absence of middle phalangeal hair might be due to a recessive gene or genes. However, exceptions were found in their American series and also in data from Japan [Matsunaga, 1956] where matings between parents without the trait produced 8 children with it.…”

Section: Discussionmentioning

confidence: 86%

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Distribution of Hair on the Phalanges of the Hand in Nigerians

Jd¹

1982

Cells Tissues Organs

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Data on the frequency and patterns of hair distribution on the phalanges of the hand are available from different parts of the world. However, the literature reveals that the African continent has so far not been explored adequately in this respect. The present investigation was undertaken to document the findings from Nigeria. A random sample of 585 male and female students and staff of the University of Calabar, Nigeria, between the ages of 18 and 30 years were examined. All the cases considered were Nigerians born to Nigerian parents. It was interesting to observe that in 4% of the males and in 5% of the females hair on the first phalanx was absent which has not been reported so far in any other population. The presence of hair on the middle phalanx also was significantly less (21 %) as compared to the findings of other authors in different populations. The distal phalanges never showed hair which is quite in agreement with the reports from other workers. Although there is a wide range of variation in presence or absence of hair on the middle phalanx from one population to another, the frequency order remains 4 > 3 > 5 > 2 in all of them including the present report. Further, it is obvious that the frequency of phalangeal hair is lowest in Africans (21%) and highest in the white race (70%). Other races are in between these values.

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Section: Discussionsupporting

confidence: 46%

Section: Discussionmentioning

confidence: 86%

Distribution of Hair on the Phalanges of the Hand in Nigerians

Jd¹

1982

Cells Tissues Organs

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“…Middle segmental hair is governed by a set of five alleles, having increasing dominance in phantasies A°, A1, A2, A3 and A4 10,11 (Bernstein and Burks, 1942;Bernstein, 1949). The subscripts correspond to the number of digits the alleles cause to be affected.…”

Section: Introductionmentioning

confidence: 99%

Dorsal Distribution of Hair on the Phalanges of Hand in a Sample of Med C H a L Town

Reddy¹,

P²,

Sudharani³

et al. 2015

jemds

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Mammals are hairy, but humans have shed most of it during evolution and became naked apes. Among humans men are supposed to be hairier than women. The hair pattern on the dorsal aspect of the hand is genetically and hormonally governed. This study has been conducted in Nigerians 1 and Indian Tribes. In association with the importance of this feature 124 subjects (63 males and 61 females) between the ages of 20 and 40 years were randomly selected from Medchal town, R. R. Dist, Telangana. The dorsal surface of the hands and digits of subjects was physically inspected for hair distribution. Observations were recorded and subdivided into gender and phalangeal hair patterns. Relation between gender and patterns was assessed by Fisher's exact test. Results show hair distribution patterns 1-2-3-4-5 (10%), 2-3-4-5 (54%), 2-3-4 (3%), 3-4-5 (16%), 3-4 (9%). One percent had no hair in there proximal phalanges. None of the females had hair on their middle phalanx. There was complete absence of hair on the distal phalanges. The pattern "3-4 "shows a significant female preponderance.

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“…And it has been dem onstrated by m any investigators (Boyd, 1950;Boyd andBoyd, 1937, 1941;Sewall, 1939;Bernstein and Burks, 1942;Bernstein, 1949;Gam, 1951;Saldanha and Guinsburg, 1961) th at there exist striking variations with regard to this character among different ethnic groups of mankind. B ut, even then, the character's satisfactory efficiency as a genetic tool for dif ferentiating population groups has not been fully estim ated.…”

Section: Introductionmentioning

confidence: 98%

“…It has been suggested (Bernstein and Burks, 1942;Bernstein, 1949) th at the distribution of middle phalangeal hair is governed by a set of five alleles having increasing dominance in phenotypes of A0, Aj, A2, A3, and A4. The subscripts correspond the num ber of fingers the alleles cause to be affected.…”

Section: Introductionmentioning

confidence: 99%

Biological Differences in Middle Phalangeal Pilosity of the Indians

Dutta¹

1966

Hum Hered

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The Incidence and Mendelian Transmission of Mid-Digital Hair in Man*

Cited by 27 publications

References 0 publications

Distribution of Hair on the Phalanges of the Hand in Nigerians

Distribution of Hair on the Phalanges of the Hand in Nigerians

Dorsal Distribution of Hair on the Phalanges of Hand in a Sample of Med C H a L Town

Biological Differences in Middle Phalangeal Pilosity of the Indians

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