Bt403 Agriculture Biotechnology
Topic 3:Applications of agriculture biotechnology I
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21.Genetic engineering is also called———
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- genetic modification
- Gene therapy
- genetics
- All of these
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22. All crops improved with transferred DNA to date have been developed to aid farmers to ————————– by reducing crop damage from weeds, diseases or insects
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- Decrease productivity
- increase productivity
- Reduce productivity
- None of these
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23.this is also known as rDNA technology that produces ———– organisms
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- Specialize
- transgenic
- transgenic
- Genetic modification
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24.Scientists can use —————— to select plants or animals that possess a desirable gene, even in the absence of a visible trait.
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- Genetic modification
- rDNA
- Productivity
- molecular markers
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25.There are ———-types of molecular markers
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- 2
- 3
- 4
- 5
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26. Names of the types of molecular markers;
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- Morphological markers
- DNA based markers
- Biochemical molecular markers
- All of these
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27.———- are those genetic markers whose inheritance can be followed with the naked eye.
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Morphological markers
DNA based markers
Biochemical molecular markers
All of these
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28.A molecular marker is a molecule contained within a sample taken from an organism (Biochemical molecules).
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- Morphological markers
- DNA based markers
- Biochemical molecular markers
- All of these
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29. One of the earliest protein based markers to be used was ——
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- enzyme
- Isozyme
- coenzyme
- lysozyme
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30. These are different forms of an enzyme exhibiting the same catalytic activity but differing in charge and electrophoretic mobility,
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- enzyme
- Isozyme
- coenzyme
- lysozyme
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31.These can be used to diagnose the presence of the gene without having to wait for gene effect to be seen.
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- Morphological markers
- DNA based markers
- Biochemical molecular markers
- All of these
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