Introductory Plant Systematics Question Paper
Introductory Plant Systematics
Course:Bachelor Of Science
Institution: Maseno University question papers
Exam Year:2011
MASENO UNIVERSITY
UNIVERSITY EXAMINATIONS 2011/2012
FIRST YEAR FIRST SEMESTER EXAMINATIONS FOR THE DEGREE OF BACHELOR OF SCIENCE,BACHELOR OF EDUCATION(SCIENCE) AND BACHELOR OF SPECIAL NEEDS WITH INFORMATION TECHNOLOGY
S.B.T 103:INTRODUCTORY PLANT SYSTEMATICS
Date 2nd December 2011 Time:2.00-4.00p.m
INSTRUCTIONS:Attempt ALL the questions in Section A and any TWO selected from Section B
SECTION A:Short answer questions (30 marks)
1)Outline three major areas that the current plant systematic activities largely concentrate. (3 marks)
2)Write a floral formula of a flower with 7 fused sepals that are asymmetrical;a radical corolla of 6 petals,3 joined together,two forming a pair and a sixth different from the rest;androecium of 10 stamens,9 joined by their filaments,the tenth free;gynoecium unicarpellate,the ovary inferior. (3 marks)
3)What are Iridiods?Provide any two aspects of their value to plant systematics. (3 marks)
4)What is the need for a good quality herbarium specimen? (3 marks)
5)Give the criteria used for systematic implication in primary and secondary metabolites.
6)Name and illustrate any three carpel types. ( 3marks)
7)Distinguish between Gametophytic isolation and Gametic isolation.(3 marks)
8)Comment on author citation in nomenclature as per the I.C.B.N. (3 marks)
9)What are the problems of modern taxonomy? (3 marks)
10)Using a cladogram,illustrate:
a.the three non-redundant ways in which three taxa (A1,A2 and A3) may be related.
b.a completely asymmetrical "comb" tree requiring seven hierarchical levels. (3marks)
SECTION B ESSAY QUESTIONS (40 MARKS)
1)Discuss the advantages of the major metabolic specializations used in systematics highlighting how they have been used in the remodeling of taxa.(20 marks)
2)Outline the procedure for preparing a good quality herbarium specimen. (20 marks)
3)Discuss Taxonometrics and Phylogenetics as methods of taxonomy. (20 marks)
4)Discuss Diagnostic keys in plant systematics. (20 marks)
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