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Loyola College M.Sc. Zoology April 2006 Embryology And Evolution Question Paper PDF Download

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             LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

SUPPLEMENTARY SEMESTER EXAMINATION – JUN 2006

B.Sc. DEGREE EXAMINATION

                                              ZO 4500 – EMBRYOLOGY AND EVOLUTION

 

 

 

Date & Time : 28/06/2006/1.00 – 4.00          Dept. No.                                                       Max. : 100 Marks

­Part A                           (Answer All)                          10 × 2 = 20

  1. Differentiate spermatogenesis from spermiogenesis.
  2. Comment on fertilizin and antifertilizin
  3. Write a note on neural crest cells.
  4. What is erythroblastosis foetalis?
  5. What do you mean by meroblastic cleavage.
  6. Distinguish cannon bone from splint bone.
  7. What are coprolites.
  8. Comment on evolutionary constancy.
  9. Give an example for each of the following adaptations

(a) Scansorial (b) Arboreal (c) Rectigrade (d) Cursorial.

  1. List down any four vestigial organs in man.

Part B                           (Answer any four)                4 × 10 = 40

  1. Categorise, explain and illustrate the types of chordate eggs.
  2. Describe morphogenetic movements.
  3. Write notes on transgenic animals.
  4. Explain the role of gene mutations in evolution.
  5. Briefly discuss the contributions of Neo Lamarkians.
  6. Tabulate the major events in the geological time scale.

Part C                           (Answer any two)                2 × 20 = 40

  1. Write an essay on placentation of mammals.
  2. Describe the development of sponges.
  3. Categorise isolating mechanisms and elucidate their importance in speciation.
  4. Trace evidences from biochemistry and physiology in favour of theory of organic evolution.

 

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Loyola College B.Sc. Zoology April 2003 Embryology And Evolution Question Paper PDF Download

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LOYOLA  COLLEGE (AUTONOMOUS), CHENNAI-600 034.

B.Sc. DEGREE  EXAMINATION   – zoology

fourth SEMESTER  – APRIL 2003

ZO 4500/ZOO 506 – embRyology and evolution      

11.04.2003

9.00 -12.00                                                                                                        Max : 100 Marks

 

 

SECTION – A                               (10 ´ 2 = 20  Marks)

Answer ALL questions

  1. Define the term ‘vitellogenesis’.
  2. What is spermiogenesis?
  3. Comment on neural crest cells.
  4. With one suitable example explain embryonic induction.
  5. What do you mean by transgenic animals?
  6. Differentiate organic evolution from inorganic evolution.
  7. What are homologous organs? Give one example.
  8. List any four vestigial organs in man
  9. Comment on Mesozoic era.
  10. Define the law of Adaptive Radiation.

 

            Section – B                                 (4 ´ 10 = 40 Marks)

Answer any FOUR questions.

 

  1. Write notes on nuclear transplantation.
  2. Categorise the eggs of chordates. Illustrate your answer.
  3. What are fate maps? Explain the fate maps of frog and chick.
  4. Explain the naturally available fossil records.
  5. With suitable diagrams explain evolutionary convergence and parallelism.
  6. Mention the contributions of any four 4 Neol

 

 

SECTION – C                                  (4 ´ 10 = 40 Marks)

answer any TWO questions.

 

  1. Write an essay on fertilization and mention the theories on fertilization.
  2. Explain the development of brain in vertebrates with illustrations.
  3. Discuss the role of isolating mechanisms in speciation.
  4. Trace evidences from physiology and biochemistry in favour of the theory of organic evolution.

 

 

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Loyola College B.Sc. Zoology April 2006 Embryology And Evolution Question Paper PDF Download

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             LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 8

FOURTH SEMESTER – APRIL 2006

                                              ZO 4500 – EMBRYOLOGY AND EVOLUTION

(Also equivalent to ZOO 506)

 

 

Date & Time : 25-04-2006/9.00-12.00         Dept. No.                                                       Max. : 100 Marks

Part A                                     (Answer All)                          10 ´ 2 = 20

  1. Comment on thelytoky.
  2. Define vitellogenesis
  3. Differentiate epiboly from emboly.
  4. What do you mean by otocyst?
  5. Comment on primordial germ cells.
  6. Differentiate organic evolution from inorganic evolution.
  7. With one suitable example explain Batesian mimicry.
  8. What are living fossils?
  9. Bring out the biological significance of Mesozoic era.
  10. Define Biogenetic law.

 

Part B                                     (Answer any four)                 4 ´ 10 = 40

 

  1. Describe spermatogenesis.
  2. Briefly explain development in sponges.
  3. What is a fate map? Explain the same with an example.
  4. Write notes on animal colouration.
  5. Categorise modes of speciation.
  6. Write notes on : (1) Biochemical recapitulation (2) Biochemical metamorphosis.

 

Part C                                     (Answer any two)                              2 ´ 20 = 40

 

  1. Write an essay on fertilization and add a note on theories of fertilization.
  2. Trace the development of eye in a vertebrate.
  3. Categorise mutations and explain their role in evolution.
  4. Assess the nature and significance of available fossil records.

 

 

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