Que usa una astronauta para hidratarse

Dna has unique properties that allow it to accurately retain genetic information, even after multiple rounds of replication. one aspect of dna that allows it to accurately store genetic information is the base pairing from chargaff\'s first rule of the four nucleotide bases. if the c content of a dna molecule is 22%, what are the percentages of the remaining bases?

Witch type of microscope is used to view very small cell components like proteins and dna?

What must be done to breed dogs for a partical trait