BANC 101 Solved Guess Paper 2026 with Answers for Introduction to Biological Anthropology (BSCANH and BSCFAN)

Define Anthropology. Discuss its scope and the various branches of Biological Anthropology.

Meaning. The American Anthropological Association defines anthropology as the study of humans, past and present, drawing on the social sciences, the biological sciences, the humanities and the physical sciences, with a central concern for applying that knowledge to human problems. Anthropology is the comparative study of mankind and imposes no restriction of time, space or aspect (Dash, 2004).

A holistic discipline. Anthropology takes a holistic view of human existence, best understood through its four field approach covering physical, social, archaeological and linguistic anthropology. It places Homo sapiens in the evolutionary scheme, analyses variation within the species, and traces the emergence of culture and civilisation (McIntosh, 2008).

Scope. Anthropology studies man in totality, as a part of nature and as a dynamic creature with biological and social features. Being comparative, it examines similarities and differences in body, behaviour and values across all human groups. The vastness of the subject led to its division into four branches, while interconnectedness with the humanities, social sciences, biological sciences and physical sciences is retained.

Four branches.

1. Physical or Biological Anthropology: deals with the human body, genetics and the status of man among living beings, drawing on anatomy, physiology, embryology, zoology and palaeontology. Sub fields include primatology, palaeontology, human genetics, growth and development, and forensic anthropology.
2. Socio Cultural Anthropology: the comparative study of human culture and society, including customary patterns of behaviour, thought and feeling and the organisation of social groups. Called social anthropology in Britain and cultural anthropology in America; the nineteenth century term was ethnology (Patnaik, 2011).
3. Archaeological Anthropology: the science concerned with recovering and studying the relics of man's past (Roe, 1970), covering prehistoric, proto historic and civilisation periods through material remains and environmental data.
4. Linguistic Anthropology: the study of human languages, especially the relationship between language and cultural behaviour, including the emergence and divergence of languages over time.

Sub fields of biological anthropology. The discipline covers human population genetics, primatology, palaeoanthropology, human genetics, medical anthropology, physiological anthropology, forensic anthropology, nutritional anthropology, dental anthropology, anthropometry, ergonomics, demography and ethology (Sinha, 2016).

Founding figures. Johann Friedrich Blumenbach (1752 to 1840) of Gottingen is regarded as the father of physical anthropology and the inventor of craniology; he divided mankind into five races, namely American, Caucasian, Ethiopian, Malayan and Mongolian. The term New Physical Anthropology was coined by S. L. Washburn in 1951, shifting the focus from taxonomic race classification to primate and human evolution, with genetics as the unifying perspective.

Conclusion. Anthropology is a holistic, integrative discipline that studies humans across time and space through four interrelated branches. Biological anthropology, founded by Blumenbach and reshaped by Washburn in 1951, supplies the biological perspective on human origin, evolution, variation and adaptation.

Critically discuss Darwinism with suitable examples.

Background. Charles Robert Darwin (1809 to 1882) was appointed naturalist in 1831 aboard H.M.S. Beagle. Over five years, from 1831 to 1836, he studied the fauna and flora of several continents and islands, of which the Galapagos Islands proved the most important. His observations produced The Origin of Species by Natural Selection in 1859.

Three influences. T. R. Malthus (1798) argued in his essay on population that populations increase geometrically while food supply increases arithmetically. Sir Charles Lyell, in Principles of Geology, established gradualism and uniformitarianism. Alfred Russel Wallace sent Darwin his paper on the tendency of varieties to depart from original types, and their joint paper was read at the Linnean Society in 1858.

The five principles.

1. Over production: every organism increases its population in geometric ratio and produces more offspring than the region can support, yet population size stays roughly constant because most offspring die before reproducing.
2. Variation: variation is characteristic of all organisms. Useful variations are inherited and favourable; harmful ones make the organism unfit. Beneficial variation becomes the raw material of evolution.
3. Struggle for existence: limited food and space against geometric reproduction produce severe competition. Three types are recognised, namely intraspecific struggle within the same species, which is the most severe, interspecific struggle between different species, and struggle with the environment.
4. Natural selection or survival of the fittest: organisms with beneficial variations survive while unfavourable ones are eliminated. The phrase survival of the fittest was proposed by Herbert Spencer. Differential reproductive success is the real criterion, since an organism that fails to reproduce leaves no representation in future generations.
5. Origin of new species: favourable variations accumulate generation after generation until a better adapted form appears. Darwin held evolution to be gradual rather than sudden.

Experimental verification. The peppered moth Biston betularia was abundant across England before the industrial revolution in grey and black forms. Grey moths camouflaged well on light tree trunks. Once soot blackened the bark, grey moths were easily spotted and eaten by birds while dark moths increased. This is industrial melanism, the classic field demonstration of natural selection.

Criticism. Darwin's theory does not account for the origin of variation among living organisms, and natural selection cannot carry a species beyond its natural range of variability. These gaps led to Hugo de Vries and the Mutation Theory in 1900, and finally to the Modern Synthetic Theory that joined Darwinism with Mendelian genetics.

Conclusion. Darwinism, built on Malthus, Lyell and Wallace, explains new species through over production, variation, struggle and survival of the fittest, and is validated by industrial melanism. Despite its two acknowledged weaknesses it remains the foundation of modern evolutionary thought.

Compare the morphological and anatomical features of Man and Apes.

Definition. Mivart (1873) defined primates as unguiculate, claviculate placental mammals with orbits encircled by bone, three kinds of teeth at least at one time of life, a brain always with a posterior lobe and calcarine fissure, the innermost digits of at least one pair of extremities opposable, a hallux with a flat nail or none, a well developed caecum, pendulous penis, scrotal testes and always two pectoral mammae.

Main primate characters, hands and limbs. Pentadactyl hands and feet, refined grasping ability with sensitive tactile pads, flat nails protecting the fingertips, opposable thumbs supporting both power grip and precision grip, and a clavicle with a generalised limb structure that allows efficient climbing.

Main primate characters, head and life history. A tendency towards erect posture, reduced olfaction with a shortened snout, increased reliance on vision through high orbital frontation and stereoscopic sight, a relatively large brain, dentition reduced to a maximum formula of 2.1.3.3 per quadrant, one pectoral pair of mammary glands, small litters with long gestation, prolonged juvenile growth, an extended life span, and complex social behaviour.

Characters of the apes. Apes have no tail. Apes and humans alone show the Y 5 cusp pattern on the molars, while monkeys show four cusps. Locomotion combines arboreal movement with knuckle walking on the ground. The arms are long relative to the hind limbs and the rib cage is flattened from front to back.

Conclusion. Primates form a distinct mammalian order defined by Mivart in 1873. Apes share most of those characters but diverge from humans in skull, dentition, backbone, hip, knee and foot, and every one of those differences traces back to the human adaptation for upright bipedal walking.

Discuss the classification of the Indian population by H. H. Risley or B. S. Guha.

Background. Twentieth century anthropologists classified the Indian population into racial groups, with contributions from Risley, Glufida Ruggeri, Haddon, Eikstedt, Guha and Sarkar. The two schemes IGNOU asks about most often are Risley in 1915 and Guha in 1935.

Risley, 1915. Sir Herbert Hope Risley classified the Indian population on anthropometric measurements and held that the three principal racial types are Dravidian, Indo Aryan and Mongoloid, with the remaining types arising from mixture in varying degrees. He listed seven physical types.

1. Dravidian: short or below medium stature, dark complexion approaching black, plentiful dark hair with occasional curl, long head, very broad nose. Found from Ceylon to the Ganges valley, southern India, western Bengal and Chotanagpur. Examples are the Paniyans of Malabar and the Santals.
2. Indo Aryan: tall stature, fair complexion, dark eyes, plentiful facial and body hair, predominantly dolichocephalic with a narrow leptorrhine nose. Found in Punjab, Rajasthan and Kashmir. Examples are Kashmiri Brahmins, Rajputs, Jats and Khatris.
3. Mongoloid: broad head, dark complexion with a yellowish tinge, scanty facial and body hair, short or below medium stature, flat face, oblique eyes with an epicanthic fold. Found in the Himalayan region, the north eastern frontier, Nepal and Burma. Examples are the Lepchas, Limbus, Murmis, Gurungs and Bodo.
4. Aryo Dravidian: long head tending to medium, complexion light brown to black, medium to broad nose, shorter than the Indo Aryans. Found in Uttar Pradesh and parts of Rajasthan and Bihar.
5. Mongolo Dravidian: broad and round head tending to medium, dark complexion, plentiful facial hair, medium nose tending to flatness, medium to short stature. Found in Bengal and Orissa. Examples are Bengali Brahmins and Kayasthas.
6. Scytho Dravidian: medium to broad head, low to medium stature, fair complexion, moderately fine nose, scanty facial and body hair. Found in western India from Madhya Pradesh and the Maharashtra Gujarat border to Coorg. Examples are Maratha Brahmins, Kunbis and Coorgs.
7. Turko Iranian: broad head, fine to medium nose, tall stature, dark and grey eyes, fair complexion, plentiful body and facial hair. Found in Afghanistan, Baluchistan and the north west frontier. Examples are Balochis, Brahui and Afghans.

Guha, 1935. Biraja Shankar Guha (1894 to 1961) classified the Indian population from anthropometric work carried out between 1930 and 1933, tracing six major racial types with nine sub types.

1. Negrito: dark skin, short stature, frizzly hair in long or short spirals, small to medium head with a bulbous forehead, flat broad nose, everted thick lips. Examples are the Kadars, Irulas and Paniyans of south India and the tribes of the Rajmahal Hills.
2. Proto Australoid: dolichocephalic head, broad flat platyrrhine nose with a depressed root, short stature, dark brown to nearly black skin, wavy or curly hair, prominent supraorbital ridges. Examples are the Oraons, Santals and Mundas, the Chenchus and Kurumbas, and the Bhils and Kols.
3. Mongoloid: scanty facial and body hair, obliquely set eyes with an epicanthic fold, flat face with prominent cheekbones, straight hair. Divided into Palaeo Mongoloid, itself long headed as in the Sema Nagas and broad headed as in the Chakmas, and Tibeto Mongoloid as in the Tibetans of Bhutan and Sikkim.
4. Mediterranean: divided into Palaeo Mediterranean, Mediterranean and Oriental, with examples ranging from Tamil and Telugu Brahmins to Punjabi Chattris and Pathans.
5. Western Brachycephals: divided into Alpenoid, Dinaric and Armenoid, with examples including the Bania of Gujarat, the Brahmins of Bengal and Mysore, and the Parsis of Bombay.
6. Nordic: long head with protruding occiput, arched forehead, straight high bridged nose, tall robust build, blue or grey eyes, fair or reddish white skin. Found in northern India, especially Punjab and Rajputana.

Conclusion. Risley produced seven physical types in 1915 on anthropometric criteria, while Guha refined the picture in 1935 into six racial types with nine sub types from measurements taken between 1930 and 1933. Guha's six fold scheme remains the classification IGNOU material cites most often for India.

Define Somatometry and describe the instruments used in it.

Section C, the compulsory anthropometry area.

Meaning. Somatometry is one of the four sub divisions of anthropometry and covers the measurement of living individuals and of cadavers. Anthropometry itself is the scientific study of the measurements of the human body according to standardised units, landmarks and instruments. Ales Hrdlicka defined it in 1939 as the systematised art of measuring and taking observation on man, his skeleton, his brain or other organs, by the most reliable means and methods, for scientific purposes.

Four sub divisions of anthropometry. Somatometry covers the living body and cadavers. Cephalometry covers the head and face. Osteometry covers the human skeleton. Craniometry covers the skull, including dental features and the post cranial skeleton.

Reference standards. Two works are treated as crucial, namely The Measurement of Human Growth (Cameron, 1984) and the Anthropometric Standardization Reference Manual (Lohman, Roche and Martorell, 1988).

Instruments of somatometry.

1. Stadiometer, to measure height or stature.
2. Anthropometer, to measure the length of body segments.
3. Weighing machine, to record body weight.
4. Steel tape, to measure body segment circumferences.
5. Spreading callipers, for the head, face and other curved areas.
6. Sliding callipers, for body diameters with blunt ends and bone diameters with sharp ends.
7. Skinfold callipers, for the thickness of skin and subcutaneous fat.
8. Scales, to measure mass.

Osteometric and craniometric instruments. The osteometric board takes linear and angular measurements on long bones. The parallelograph measures the torsion angle between the two axes of a long bone. The pelvimeter measures the pelvis. The craniophore holds the skull in position. The palatometer measures the palate, the mandibulometer the mandible, and the goniometer takes angular measurements on the skull and face.

Somatoscopy. Somatoscopy is the description of morphological physical characteristics based on visual observation, and covers skin colour, hair colour, eye colour, face form, nose form and lip form. From the early 1800s to 1950, research on human variation rested mainly on body dimensions through anthropometry and on visible traits through somatoscopy.

Conclusion. Somatometry is the metric study of the living human body and a key sub division of anthropometry, using a defined instrument set for systematic measurement. Somatoscopy completes the picture through visual observation, and its relative cheapness and simplicity are what keep anthropometry central to the study of human variation.