OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It could increase the quality of the organism.
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It could increase the health of the organism.
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It could increase the lifespan of the organism.
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It could open the possibility for mistakes or mutations in the DNA of the organism.
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Detailed explanation-1: -Special concern has been focused on genetic engineering for fear that it might result in the introduction of unfavourable and possibly dangerous traits into microorganisms that were previously free of them-e.g., resistance to antibiotics, production of toxins, or a tendency to cause disease.
Detailed explanation-2: -Extremely inaccurate DNA replication can lead to a rapid accumulation of mutations that disrupts cellular processes needed for viability and extinguish clonal populations of cells within several generations [3, 4].
Detailed explanation-3: -Both mutation and recombination can have dramatic effects on the cell in which they occur. A mutation in a key gene may cause the cell to die if the protein coded by the mutant gene is defective (Section 14.1.
Detailed explanation-4: -DNA replication errors, especially those occurring at regions that are hard to replicate, called fragile sites, can cause breaks in DNA. This can lead to cancer, primarily by making it more likely that fragments of chromosomes rearrange themselves, activating genes that lead to uncontrollable cell division.