Which option correctly contrasts the named ideas for Variation and evolution, Genetic engineering: students must describe (HT only) inserting the required gene into a vector such as a bacterial plasmid or virus.

The correct option is Correct contrast: DNA can contain many genes; a gene has a specific coding role. This matches Genetic engineering because students must describe (HT only) inserting the required gene into a vector such as a bacterial plasmid or virus.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in Genetic engineering.

The correct option is Correct contrast: DNA can contain many genes; a gene has a specific coding role. This matches Genetic engineering because students must describe (HT only) inserting the required gene into a vector such as a bacterial plasmid or virus.. Correct contrast: DNA can contain many genes; a gene has a specific coding role. This matches Genetic engineering because students must describe (HT only) inserting the required gene into a vector such as a bacterial plasmid or virus. is correct because DNA can contain many genes; a gene has a specific coding role. The learning objective says students must describe (HT only) inserting the required gene into a vector such as a bacterial plasmid or virus, so the answer must stay inside Genetic engineering. The alternative options are wrong because they either calling a gene a whole chromosome., explaining protein coding without naming the gene as the relevant section of dna., or drift away from when asking about genes, test a section of dna, protein coding, alleles, or inherited characteristics..