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Course: Igcse Biology
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Igcse Biology

14. Coordination and Response

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16. Reproduction

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17. Inheritance

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19. Organisms and their Environment

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Quiz

Biotechnology & Genetic Modification – Check yourself

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Biotechnology & Genetic Modification IGCSE Biology check yourself quiz: free practice for IGCSE Biology. Work through this Biotechnology & Genetic Modification IGCSE Biology check yourself quiz and get instant feedback on every answer. If you get stuck, review the 21.1 Biotechnology and genetic modification — Notes lesson. More practice: IGCSE Biology — all units. Syllabus: Cambridge IGCSE Biology 0610 syllabus.

1.
Which enzyme joins DNA fragments together?
Restriction enzyme
DNA ligase
Pectinase
Lactase
2.
Why does bread dough rise?
Yeast produces carbon dioxide
Yeast produces oxygen
Yeast produces ethanol vapour only
Enzymes digest starch into gas
3.
Which enzyme is used to make fruit juice clearer?
Protease
Lipase
Amylase
Pectinase
4.
Which is NOT a reason bacteria are used in genetic modification?
They reproduce rapidly
They contain plasmids
They have a nucleus with many chromosomes
They share the same genetic code
5.
Why is oxygen supplied to a fermenter producing penicillin?
To cool the vessel
For aerobic respiration of the fungus
To kill contaminants
To keep the pH low
6.
Which is a disadvantage of GM crops?
Higher yields
Reduced use of pesticides
Possible reduction in biodiversity
Improved nutritional content
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