El desmembramiento de pangea ocurrió en la era: 1- Cenozoica
2- Cuaternaria
3- Mezozoica
4- Arcaica

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

Need on both questionswill markbr />

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!