Kap 101: General Genetics Question Paper

Kap 101: General Genetics

Course:Bachelor Of Science

Institution: Kenyatta University question papers

Exam Year:2011

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2010/2011
SECOND SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE
IN ANIMAL PRODUCTION AND HEALTH MANAGEMENT
KAP 101: GENERAL GENETICS

DATE: Wednesday 30th March, 2011

TIME: 11.00 a.m. – 1.00 p.m.
___________________________________________________________________________________
INSTRUCTIONS
Answer Q1 and any other THREE questions.

1.
(a)
Define the stage of meiosis that is amenable to anticancer drugs that stop DNA synthesis.

[5 marks]

(b)
Distinguish between a spermatid and sperm.

[5 marks]

(c)
Using relevant examples, describe heterogametic male.

[5 marks]

(d)
Discuss crisscross inheritance giving an example.

[5 marks]

(e)
Define linkage group.

[5 marks]

2.
(a)
Describe mutation induction.

[5 marks]

(b)
Differentiate between an increasing and decreasing allele giving examples.

[5 marks]

(c)
‘Qualitative traits differ in kind while quantitative traits differ in degree’. Discuss giving
two examples of each in animals.

[5 marks]

3.
Discuss genetic notations and why they are confounding.

[15 marks]

4.
Homozygotes in a population in Hardy-Weinberg equilibrium have frequencies 0.49 and 0.09
respectively. In a population of 80,000 individuals calculate the individuals of each genotype.

[15 marks]

Q5.
Discuss the expected number of gametes, genotypes, phenotypes and minimum population size
for (i) Two genes, (ii) Seven genes (iii) Eight genes

[15 marks]
…………………

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