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Szl 413: Population Genetics Question Paper

Szl 413: Population Genetics 

Course:Bachelor Of Science

Institution: Kenyatta University question papers

Exam Year:2008



KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2007/2008
SECOND SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE.
SZL 413: POPULATION GENETICS
DATE: FRIDAY, 20TH , JUNE 2008 TIME: 11:00 A.M. - 1.00 P.M.
INSTRUCTIONS:
Answer all the questions from section A and any ONE question from Section B. Within a Section ALL questions carry equal marks. Illustrate your answers with diagrams and give examples where appropriate.
SECTION A:
Answer ALL questions (5 marks each)
1. Describe hybrid formation and its benefits.

2. Explain the concept of divergent evolution.

3. Explain how Mendel’s experiments differed from those of others who had studied genetics.

4. Explain an experiment that can determine whether an organism showing a dominant trait is homozygous or heterozygous.

5. Describe sex- linked traits citing two examples.

6. Describe how a single species may become two species.

7. Explain the following terms:
a) Segregation
b) Selection
c) Heterozygous
d) Species
e) Mutation

8. Differentiate between individual adaptation and population adaptation citing examples respectively.

SECTION B
Answer any ONE question
9. Discuss the factors that change gene frequencies in a population.

10. Give an account of the role of sexual reproduction in evolution.




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