Which option correctly contrasts the named ideas for The development of understanding of genetics and evolution, Extinction: students must describe environmental changes as possible contributors to extinction.

The correct option is Correct contrast: DNA can contain many genes; a gene has a specific coding role. This matches Extinction because students must describe environmental changes as possible contributors to extinction.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in Extinction.

The correct option is Correct contrast: DNA can contain many genes; a gene has a specific coding role. This matches Extinction because students must describe environmental changes as possible contributors to extinction.. Correct contrast: DNA can contain many genes; a gene has a specific coding role. This matches Extinction because students must describe environmental changes as possible contributors to extinction. is correct because DNA can contain many genes; a gene has a specific coding role. The learning objective says students must describe environmental changes as possible contributors to extinction, so the answer must stay inside Extinction. 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..