Sbl 112: Introduction To Biotechnology Question Paper

Sbl 112: Introduction To Biotechnology

Course:Agricultural Education

Institution: Masinde Muliro University Of Science And Technology question papers

Exam Year:2010

Q1. Define the following terms:-

i) Biotechnology (4 mks)
ii) Totipotency (4 mks)
iii) Codon (2 mks)
iv) Gene therapy (4 mks)
v) Genetic code (4 mks)
vi) Genetically modified organism (2 mks)

Q2 Differentiate between the following terms as used in biotechnology:-
a) DNA and RNA (10 mks)
b) Transcription and translation (5 mks)
c) Homozygous and heterozygous conditions (5 mks)

Q3. Using relevant illustrations explain in clear, but brief terms, what the central dogma entails. (20 mks)

Q4. a) What components are proteins made up of? (2 mks)
b) What are the functions of proteins? (8 mks)
c) Using the case of sickle cell disease illustrate the significance of the sequence of amino acids. (10 mks)

Q5. Biotechnology is one of the newest sciences of our modern times and yet it has considerably affected agriculture. Mention two (2) cases of foreign gene transfer into domesticated crop or animal species and indicate:-
a) The gene that was transferred,
b) The source of the gene,
c) The gene’s effect, and
d) The crop(s) or animal(s) that has/have benefitted.(20 mks)

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Sbl 112: Introduction To Biotechnology Question Paper

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