OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Each person’s DNA will band in different colors in the gel tray
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The 99 percent of the DNA that is the same will reflect UV light differently
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It focuses only on the small regions of the DNA which are known to vary among individuals.
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Experts can determine the different genes by reading the genetic alphabet displayed in the gel.
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Detailed explanation-1: -How can gel electrophoresis be used for identification of individuals when over 99 percent of human DNA is the same? It focuses only on the small regions of the DNA which are known to vary among individuals. Experts can determine the different genes by reading the genetic alphabet displayed in the gel.
Detailed explanation-2: -Hence, polymorphism in DNA sequence is a basis of genetic mapping of human genome, DNA fingerprinting.
Detailed explanation-3: -Expressed Sequence Tags (ESTs) – This approach focussed on identifying all genes expressed as RNA.
Detailed explanation-4: -How might the application of biotechnology have the potential to negatively impact individuals? Making genetically modified foods without research on safety.