Sunday, August 9, 2009

Multiple mating

Researchers at Heriot-Watt University and Plymouth Marine Laboratory (PML) in collaboration with Edinburgh based company Ingenza Ltd are searching for new enzymes for use as manufacturing tools in the pharmaceutical and agrochemical industries. The research project, funded by the Biotechnology and Biological Sciences Research Council (BBSRC) and the Technology Strategy Board (TSB), uses biochemical techniques to identify potentially useful enzymes in microbes that are found in the sea.

In almost all animals, females mate with several different males, despite the fact that a single mating is often sufficient to fertilize her eggs. Multiple mating also carries costs to females, such as the risk of catching sexually transmitted diseases. One commonly held belief is that this behaviour may allow females to choose the sperm of the male with highest genetic quality to fertilize her eggs. Professor Göran Arnqvist from the Department of Ecology and Evolution, Uppsala University and associate professor Trine Bilde from the Department of Biological Sciences, University of Aarhus, have tested this possibility directly for the first time and shown that it is not true.


Sursa Speranta.info

Am vazut multe ceasuri superbe pe www.topceas.ro


Am vazut multe ceasuri superbe pe www.topceas.ro


Am vazut multe ceasuri superbe pe www.topceas.ro


Am vazut multe ceasuri superbe pe www.topceas.ro


Am vazut multe ceasuri superbe pe www.topceas.ro


Am vazut multe ceasuri superbe pe www.topceas.ro


Am vazut multe ceasuri superbe pe www.topceas.ro

Am vazut multe ceasuri superbe pe www.topceas.ro

No comments:

Post a Comment