Histones were extracted from frog livers and testes and analyzed by electrophoresis on long polyacrylamide gels and on sodium dodecyl sulfate (SDS)-containing polyacrylamide gels. Frog histones were ...

A FROG with abnormal genitalia was brought to my notice during class work. A pad was present on the forefingers as in a normal male. The kidneys were longer than in a normal frog and reminiscent of ...

Berkeley - Native male leopard frogs throughout the nation's Corn Belt are being feminized by an herbicide, atrazine, used extensively to kill weeds on the country's leading export crops, corn and ...