As ann landers once remarked, "at age 20, we worry about what others think of us. at 40, we don't care what they think of us. at 60, we discover they haven't been thinking of us at all."

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?

During binary fission, what events must occur before the cell splits into two new cells?

Explain how the parts of the peripheral nervous system work with the central nervous system to produce a response to the stimulus