nicked circle (Science: molecular biology) During extraction of plasmid dNA from the bacterial cell, onestrand of the DNA becomes nicked. This relaxes the torsional strain needed to maintain supercoiling, producing the familiar form of plasmid...
Human intelligence provided the means to utilize abstract ideas and implement reasoning. This tutorial takes a further l..
Human consciousness and behavior are an interesting topic since they are determined and controlled by the brain. Conscio..
Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..
Learn about community patterns and the ecological factors influencing these patterns. Revisit some of the ecosystems you..
Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..
This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..
