There are sixty-one codons that each specify the addition of a specific amino acid, and three stop codons for which there is no corresponding amino acid. however, there are only about forty trna molecules, representing forty anticodons. how is that possible?

b. examine and describe cells

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.