Pdf: Les Definitions De Svt 2 Bac Pc

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Définitions clés en SVT 2 Bac PC

• Gene : Segment of DNA coding for a specific protein.
• Allele : Variant form of a gene.
• Genotype : Set of alleles present in an individual.
• Phenotype : Observable characteristics (physical, biochemical, behavioral).
• Homozygous / Heterozygous : Two identical / different alleles for a gene.
• Mutation : Permanent, heritable change in DNA sequence.
• Genetic engineering : Techniques for modifying an organism’s genome.
• Recombinant DNA : DNA molecule formed by joining fragments from different sources.
• PCR (Polymerase Chain Reaction) : Technique to amplify a specific DNA sequence.
• Electrophoresis : Method to separate DNA/protein fragments by size.