BABSc, B.Com & BCA Questions _III - Nalanda Open University

Nalanda Open University
Annual Exam-2010,
Bachelor of Science (Zoology) Hons, Part-III
Paper-VII
Time: 3Hrs Full Marks: 75
Answer any five questions. Question no. 1 is compulsory.
All questions carry equal marks.
1. Multiple Choice Questions:
(lxxxiii) Dobzhansky separated isolating mechanism into
(a) geographic isolation (b) reproductive isolation (c) Both (d) None.
(lxxxiv) Role of isolation in evolution is
(a) Differentiation of species (b) maintenance of species
(c) evolutionary divergence (d) extinction of species.
(lxxxv) Most primitive fossil of horse is
(a) Equus (b) Meychippus (c) Mesohippus (d) Eohippus
(lxxxvi) Which one is the closet relative of modern man today
(a) Orangutan (b) Gorilla (c) Gibbon (d) Sinanthropus
(lxxxvii) Evolution is best defined as
(a) struggle for existence (b) spontaneous generation
(c) descent with modification (d) Inheritance of acquired characters.
(lxxxviii) Combinational variations arise by
(a) fertilization (b) crossing over among genes
(c) independent assortment (d) all of the above.
(lxxxix) Evolution of horse began in the
(a) Pliocene period (b) mesocene period
(c) Eocene period (d) Oligocene period
(xc) The book, "Origin of species was published in
(a) 1908 (b) 1858 (c) 1859 (d) 1956
(xci) The presence of six digits on hand is the result of
(a) meristic variation (b) somatic variation
(c) substantive variation (d) none
(xcii) Role of mutation in evolution is
(a) reproductive isolation (b) genetic variations (c) genetic drift (d) none
of these.
(xciii) The source of variation was explained by
(a) Lamarck (b) Lysenko (c) Hugo devries (d) Darwin
(xciv) 'Struggle for existence' and 'survival of fittest' are related with
(a) Lamarckism (b) Oparin theory (c) Mendelism (d) Darwinism
(xiii) Who opposed Lamarckism very critically?
(a) Weismann (b) Wallace (c) Waldeyer (d) Darwin
(xiv) Neo-Lamarckism depends on
(a) Mutation and natural selection (b) Only variations
(c) enormous fertility (d) mutations and variation
(xv) Which of the following fossil man stood erect first?
(a) Java man (b) Peking man
(c) Australiapithecus (d) Cro-magnon man.
2. Write an essay on the fossil history of horse.
3. Give an account of the different isolating mechanism and their role in evolution.
4. Describe the different sub-regions of Australian-region with special fauna.
5. Give an account of the evolution of man.
6. What do you understand by oceanic islands? Discuss its general peculiarities.
7. Write an essay on Darwin's theory of natural selection and origin of species.
8. Define variation. Describe various kinds and causes of variation.
9. Give an account of Lamarck's theory of organic evolution.
10. Write short notes on any two of the following:
(a) Palaeartic-region (b) Oriental region
(c) Zoo-geography.