HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The DNA of an organism is manipulated
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Mutations to an organism occur
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Newly “engineered” traits could be beneficial or harmful to an organism.
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All of the above
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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: -Genetic engineering is accomplished in three basic steps. These are (1) The isolation of DNA fragments from a donor organism; (2) The insertion of an isolated donor DNA fragment into a vector genome and (3) The growth of a recombinant vector in an appropriate host.
Detailed explanation-3: -Traditional genetic modification methods that have been employed-particularly for microbial starter cultures-include selection, mutagenesis, conjugation, and protoplast fusion, the last of which is analogous to somatic hybridization in plant systems.
Detailed explanation-4: -The first genetically modified organism to be created was a bacterium, in 1973. In 1974, the same techniques were applied to mice. In 1994 the first genetically modified foods were made available. Genetic engineering has a number of useful applications, including scientific research, agriculture and technology.