Iph2212:Medical Entomology Question Paper
Iph2212:Medical Entomology
Course:Bachelor Of Science In Public Health
Institution: Meru University Of Science And Technology question papers
Exam Year:2010
INSTRUCTIONS: Answer questions one and any other two questions
QUESTION ONE (30 MARKS)
a) Using examples, explain food fermentation. (6 Marks)
b) Explain the following terms/phrases as used in biotechnology. (7 Marks)
i. Molecular cloning
ii. Plasmid
iii. Restriction enzyme
iv. Bacteriophage
v. DNA ligase
vi. Callus
vii. Food biotechnology
c) Discuss use of recombinant DNA (rDNA) technology in food processing. (6 Marks)
d) Explain Bt maize and describe briefly how it was developed. (5 Marks)
e) Explain plant tissue culture (TC)/micropropagation. (2 Marks)
f) Distinguish between traditional and modern techniques in food biotechnology.
(4 Marks)
QUESTION TWO (20 MARKS)
a) Define the term probiotics and explain health benefits of probiotics. (14 Marks)
b) Discuss toxicity and allergies concerns of genetically modified foods. (6 Marks)
QUESTION THREE (20 MARKS)
a) Recombinant DNA (rDNA) technology would not be applicable without restriction
enzymes. Discuss. (10 Marks)
b) Discuss production and use of single cell proteins as food. (10 Marks)
2
QUESTION FOUR (20 MARKS)
The process of genetic engineering in plants requires successful completion of a series of five
steps. Discuss these steps. (20 Marks)
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