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NATIONAL OPEN UNIVERSITY OF NIGERIA

UNIVERSITY VILLAGE, PLOT 91, CASDASTRAL ZONE, NNAMDI AZIKIWE EXPRESS WAY, JABI, ABUJA.
FACULTY OF SCIENCES
APRIL/MAY 2019 EXAMINATION

Course code: BIO 404 Systematics Biology

Units: 2

Time allowed: 2 Hours

INSTRUCTION: Answer question ONE (1) and any other THREE (3) questions

 

1a.What is the aims of classical taxonomy? (3marks)

b. State the reasons why Linnaeus is most known today in taxonomy (4marks)

c. Write briefly on John Hutchinson as a taxonomist (3marks)

d. Enumerate the four criteria that must be met before a name of a taxon can be validly published (4marks)

e. State the three rules of taxonomy adopted by the International Code of Botanical Nomenclature in 1886 (3marks)

f. In biosystematics, there are four main types of relationships between plants. Name the four types of relationships. (4marks)

g. What the four preliterate human processes of taxonomy (4marks)

 

2a. What is folk taxonomy? (2marks)

b. Discuss the population taxonomy (4marks)

c. Write notes on plant chemotaxonomy (9marks)

 

3a. What are the unique obstacles faced by the researchers in analysing apomixes (4marks)

b.   Write notes about Andrea Caesalpino as one of the pioneer taxonomists       (5marks)

c. Discuss the experimental phase of plant taxonomic development (6marks)

 

4a. List the different shapes of pollen when viewed from the polar angle  (4marks)

b. Discuss parallelism and convergence in taxonomy (4marks)

c. A flower is seen to be made of different parts, discuss the different parts of the flower    (7marks)

 

5a. What do you understand by ecological isolation? (3marks)

      5b. Discuss the genetic variation in organisms (12marks)


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