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Zool 221: Animal Genetics And Evolution Question Paper

Zool 221: Animal Genetics And Evolution

Course:Bachelor Of Science In Education Science

Institution: Kabarak University question papers

Exam Year:2009

COURSE CODE: ZOOL 221
COURSE TITLE: ANIMAL GENETICS AND EVOLUTION
STREAM: SESSION VI
DAY: TUESDAY
TIME: 2.00 – 4.00 P.M.
DATE: 11/08/2009
INSTRUCTIONS TO CANDIDATES:
ANSWER ALL QUESTIONS FROM SECTION A AND ANY TWO FROM SECTION B

SECTION A (40MARKS)
Q1. Write short notes on the following
a) Fossils (3marks)
b) Convergent evolution (3marks)
c) Continental drift (3marks)
Q2. a) Describe and illustrate the structure of nucleic acids (4 marks)
b) Give the differences between RNA and DNA (3marks)
Q3. Describe the events of Prophase 1 in cell division. (8marks)
Q4. Describe the term adaptive radiation with reference to Darwin finches (8marks)
Q5. In guinea pigs, black coat colour is dominant to brown and short hair is dominant to long
hair. These characters are not linked. A breeder has only stocks of pure breeding long
haired brown and pure breeding short haired black guinea pigs. Explain the breeding
programme to be followed to obtain pure breeding long haired black guinea pigs. (8marks)
SECTION B (30 MARKS)
Q6. Describe genetic and biochemical defects that cause senescence in organisms (15marks)
Q7. Discuss the theory of natural selection (15marks)
Q8. Describe the changes that have taken place in the evolution of humans. (15marks)

Zool 221: Animal Genetics And Evolution Question Paper

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