OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Choosing individuals to mate based on desired characteristics
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Observing genetic changes in populations over time based on adaptive traits
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Extracting stem cells to differentiate into specialized tissues
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Altering the DNA of an organism at the molecular level
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Detailed explanation-1: -Genetic engineering (also called genetic modification) is a process that uses laboratory-based technologies to alter the DNA makeup of an organism. This may involve changing a single base pair (A-T or C-G), deleting a region of DNA or adding a new segment of DNA.
Detailed explanation-2: -A transgenic, or genetically modified, organism is one that has been altered through recombinant DNA technology, which involves either the combining of DNA from different genomes or the insertion of foreign DNA into a genome.
Detailed explanation-3: -Answer and Explanation: The correct answer is (c) an organism carrying a gene that was acquired by artificial means. “Genetically-modified organism” is a general term which refers to organisms that contain genetic material acquired through artificial means.
Detailed explanation-4: -The distinction between the two is based on purpose. Gene therapy seeks to alter genes to correct genetic defects and thus prevent or cure genetic diseases. Genetic engineering aims to modify the genes to enhance the capabilities of the organism beyond what is normal.