AIR 177 · CSE 2020 · ANT1 · 26 pages

PRATIK JUIKAR: ANT1 answer copy

10 answers by PRATIK JUIKAR, as written in the test.

The questions

  1. Q1c) Olduvai Gorge
  2. Q1(a)a) Structural Aberrations
  3. Q1(b)Polygenic inheritance in humans
  4. Q1(d)Social behaviour of primates
  5. Q1(e)Genetic load and its significance in Evolution.
  6. Q2(a)Methods for study of genetic principles in man family study.
  7. Q2(b)Synthetic theory of evolution removed flaws of theory of Natural selection.
  8. Q2(c)Genetic polymorphism and selection
  9. Q3(a)Explain briefly physical features of all 3 Homo sapiens15 marks
  10. Q3(b)Genetic counselling and its significance in India.10 marks

The answers

Question 1 · 169 words written

c) Olduvai Gorge

Opening · no separate opening

None written.

Body · points

c) Olduvai Gorge

  • Olduvai gorge is a palaeoanthropological site, located in Tanzania, Africa.
Diagram
[Map of Africa showing Olduvai Gorge location in East Africa and North arrow]

Archaeological Significance

  • Louis and Mary Leaky are responsible for most of the excavations and discoveries of hominin fossils in Olduvai gorge.
  • Being a rift valley it created depositional profiles.
  • It demonstrated evidences of 4 pluviations - Kageran, Kamasian, Kanjeran & Gambian.
  • Provided biological + cultural history of humans.

Discoveries

  • Tool culture from about 2 million years ago was found.
  • Cultural Evidences -
  1. Kenyan Chellean - Hand axes, stone hammer
  2. Kenyan Acheulean - Twin axes, cylinder hammer technology
  3. Gambian - development of microliths

Continuity in cultures Unlike European traditions, cultures of Olduvai gorge are continuous in tradition, thus it becomes possible to study evolution and interactions.

Fossil Evidences

  1. Australopithecus Boisei - dubbed as 'Nutcracker Man' because of large molars (vegetarian diet)
  • skull dated 1.75 mya
  1. Australopithecus afarensis
  2. Homo habilis

Close · a summary

Thus, today Olduvai gorge forms a large working ground for palaeontologists, archaeologists and anthropologists.