The use of restriction enzymes as a tool for recombining, or joining, different DNA fragments was first illustrated in yet another classic paper, this time by Stanford University researchers Janet Mertz and Ronald Davis (Mertz & Davis, 1972).
Averages for Puerto Vallarta in February. The temperatures are still very warm in Puerto Vallarta, Mexico, in February, even though itâs still winter. Thanks to the cityâs location close to the equator, it enjoys good weather all year round providing the perfect place to head for a winter beach break â it certainly beats the cold European winter.
The 7 day weather forecast summary for Nuevo Vallarta: Reviewing the forecast for Nuevo Vallarta Over the next 7 days and the average daytime maximum temperature will be around 35Â°C, with a high for the week of 36Â°C expected on the afternoon of Thursday 27th. The average minimum temperature will be 14Â°C, dipping to its lowest on the morning of Saturday 22nd at 13Â°C.