the watson & crick model suggests that if you know the sequence of nucleotides on one strand of dna, making the second strand is simple. what feature of the model is directly responsible for this?

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

Select the correct answer from each drop-down menu. the lac operon in e. coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .

Which of the following would involve looking at different structures of organisms and comparing how similar they are? a. vestigial structuresb. radiometric datingc. homologous structures