Which option correctly contrasts the named ideas for The development of understanding of genetics and evolution, Speciation (biology only): students must explain that evidence over time has improved current understanding of speciation.

The correct option is Correct contrast: DNA can contain many genes; a gene has a specific coding role. This matches Speciation (biology only) because students must explain that evidence over time has improved current understanding of speciation.. It is the only option that keeps DNA vs genes separate and answers the approved learning objective in Speciation (biology only).

The correct option is Correct contrast: DNA can contain many genes; a gene has a specific coding role. This matches Speciation (biology only) because students must explain that evidence over time has improved current understanding of speciation.. Correct contrast: DNA can contain many genes; a gene has a specific coding role. This matches Speciation (biology only) because students must explain that evidence over time has improved current understanding of speciation. is correct because DNA can contain many genes; a gene has a specific coding role. The learning objective says students must explain that evidence over time has improved current understanding of speciation, so the answer must stay inside Speciation (biology only). 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..