Some bacteria are metabolically active in hot springs

Which codon is the code for the amino acid histidine (his)?

Dna and rna share a number of similarities, but they also differ in certain aspects of their structure. wich nitrogenous base is found in rna but is not found in dna

Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?