What term describes organisms whose DNA has been engineered?

Prepare for the IGCSE Environmental Management Test. Use flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam with tailored practice and resources.

Multiple Choice

What term describes organisms whose DNA has been engineered?

Explanation:
Genetically modified organisms are those whose DNA has been deliberately engineered in the lab to add, remove, or change traits. This involves techniques that insert foreign genes, delete existing ones, or precisely edit genes to achieve a desired outcome, such as pest resistance in crops or production of useful proteins. Modern methods like CRISPR and other gene-editing tools exemplify this targeted genetic design. Clones are simply exact genetic copies of another organism, produced without changing the genome. Hybrids come from crossing different organisms to combine traits, which is about breeding rather than direct genetic modification. Mutants refer to organisms that have changes in their DNA that may occur naturally or be induced, not necessarily through deliberate engineering.

Genetically modified organisms are those whose DNA has been deliberately engineered in the lab to add, remove, or change traits. This involves techniques that insert foreign genes, delete existing ones, or precisely edit genes to achieve a desired outcome, such as pest resistance in crops or production of useful proteins. Modern methods like CRISPR and other gene-editing tools exemplify this targeted genetic design.

Clones are simply exact genetic copies of another organism, produced without changing the genome. Hybrids come from crossing different organisms to combine traits, which is about breeding rather than direct genetic modification. Mutants refer to organisms that have changes in their DNA that may occur naturally or be induced, not necessarily through deliberate engineering.

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