O level south west regional mock gce 2022 biology 2

O level south west regional mock gce 2022 biology 2

O level south west regional mock gce 2022 biology 2

SECTION I OF SYLLABUS: Choose Only ONE question
1)

a) Draw a large neatly labelled diagram of a bony fish
b) Describe how fishes are adapted to survive in water
c) State the economic importance of bacteria
2)
a) Give three differences between a plant cell and an animal cell (3mks)
b) Describe an experiment to test for the presence of proteins in groundnut
seeds
c) i) State the characteristics common to all insects
ii) What measures can be taken to prevent the spread of malaria? (5mks)

SECTION m OF SYLLABUS: Choose only ONE Question
3)
a) Define the following terms as used in genetic engineering
i) DNA
ii) DNA Ligase
iii) DNA polymerase
b) Describe the process of puff puff or bread making, stating the role played
by yeast
c) ii) How is the biological pest control better than chemical pest control?

ii) Explain li^ee ways in which genetic engineering has benefitted man in
his daily life (3mks)

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