The Ring of Fire is . a. the arc stretching from New Zealand to the Aleutian Islands b. composed of over 75% of the world’s active and dormant volcanoes c. can be found along the coast of North and South America d. all of the above

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?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?