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?

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.

Calculate the concentration of all species in a 0.165 m solution of h2co3.

Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.