Essential Information. Ultrasound technicians, also called diagnostic medical sonographers or sonographers, operate equipment that utilizes sound waves to create images of the body's internal structures. Ultrasound is commonly used in obstetrics, but it can also diagnose other medical conditions.ssential Information. Ultrasound technicians, also called diagnostic medical sonographers or sonographers, operate equipment that utilizes sound waves to create images of the body's internal structures. Ultrasound is commonly used in obstetrics, but it can also diagnose other medical conditions.
Flippase. Flippases are a family of transmembrane lipid transporter enzymes located in the membrane responsible for aiding the movement of phospholipid molecules between the two leaflets that compose a cell's membrane.
It is analogous to Cre-lox recombination but involves the recombination of sequences between short flippase recognition target (FRT) sites by the recombinase(Flp)derived from the 2Âµm plasmid of baker's yeast Saccharomyces cerevisiae.