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Examinations for ZO313: Evolutionary Developmental Zoology, Academic Year 2007/2008, Exams of Zoology

Symbiosis InternationalZoology

Information about the examinations for the evolutionary developmental zoology module (zo313) during the academic year 2007/2008. Exam codes, module information, instructions, and sample questions. Students are required to answer questions related to topics such as genetics, selection, molecular systematics, developmental stages, and polarity determination in drosophila and c. Elegans.

Typology: Exams

2011/2012

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Semester I Examinations 2007 / 2008
Exam Code 3BS, 3MR
Exam Third Undenominated Science, Third Marine Science
Module Code ZO313
Module Evolutionary Developmental Zoology
External Examiner Prof. C. Holland
Internal Examiners Prof. W. Arthur
Dr. U Frank
*Dr. GPMcCormack
Paper No. 1
INSTRUCTIONS: Answer four questions
Duration: Three Hours
No. of Pages 2
Department; Zoology
1. Answer both parts
A) In an experimental population of Drosophila, a sample of males and virgin females
includes 66 A1A1, 86 A1A2 and 28A2A2 flies. Each genotype is represented equally
in both sexes and each can be distinguished by eye colour. Determine the allele and
genotype frequencies and whether or not the locus is in Hardy-Weinberg
equilibrium.
B) Briefly describe the different kinds of selection acting on populations.
2. Write an essay on Molecular Systematics.
3. “All speciation is allopatric in one way or another”. Discuss.
4. Which (placental) mammalian developmental stage is the equivalent of the blastula
in other animals? Describe the fate of the two basic cell types composing this stage
in mammals and refer also to their developmental potency. What is the main
hallmark in subsequent mammalian development?
pf2

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Semester I Examinations 2007 / 2008

Exam Code 3BS, 3MR Exam Third Undenominated Science, Third Marine Science

Module Code ZO Module Evolutionary Developmental Zoology

External Examiner Prof. C. Holland Internal Examiners Prof. W. Arthur Dr. U Frank *Dr. GPMcCormack

Paper No. 1

INSTRUCTIONS: Answer four questions Duration: Three Hours No. of Pages 2 Department; Zoology

  1. Answer both parts

A) In an experimental population of Drosophila , a sample of males and virgin females includes 66 A 1 A 1 , 86 A 1 A 2 and 28A 2 A 2 flies. Each genotype is represented equally in both sexes and each can be distinguished by eye colour. Determine the allele and genotype frequencies and whether or not the locus is in Hardy-Weinberg equilibrium.

B) Briefly describe the different kinds of selection acting on populations.

  1. Write an essay on Molecular Systematics.
  2. “All speciation is allopatric in one way or another”. Discuss.
  3. Which (placental) mammalian developmental stage is the equivalent of the blastula in other animals? Describe the fate of the two basic cell types composing this stage in mammals and refer also to their developmental potency. What is the main hallmark in subsequent mammalian development?
  1. During which stages is the anterior-posterior polarity determined in the Drosophila and C. elegans embryos? Describe one feature in the development of each of the two species that is different in Drosophila vs. C. elegans.
  2. What is the Spemann's organizer, what are its main functions in amphibian development and how have these functions been discovered? Name one gene (protein) that is important in the organizer.
  3. Write an essay on developmental ‘compartments’ in insects, as revealed through studies on Drosophila.
  4. Discuss the variation in wing eyespots found in the butterfly Bycyclus. Include in your answer accounts of genetic, environmental and evolutionary aspects of the variation.