Which of the following are examples of gene editing tools mentioned?

• A. Gene editing tools such as CRISPS and TALEN
• B. PCR and gel electrophoresis
• C. Cloning
• D. Hybridization

Answer: (A)

Gene editing tools are methods that make targeted changes to an organism’s DNA. Examples like CRISPR-Cas9 and TALENs are designed to cut DNA at specific sequences, allowing precise edits, insertions, or deletions in the genome. That’s why they are the correct reference when asking for gene editing tools.

PCR and gel electrophoresis, in contrast, are used to analyze DNA: PCR amplifies DNA, and gel electrophoresis separates DNA fragments by size. Cloning creates copies of DNA or organisms but does not edit the genome itself. Hybridization describes the binding of complementary DNA or RNA strands and is a principle used in various assays, not a genome-editing technique.