Two methods of producing transgenic mice are widely used: transforming embryonic stem cells<span> (ES cells) growing in tissue culture with the desired DNA; injecting the desired gene into the pronucleus of a fertilized </span>mouse<span> egg.</span>
Cells can only be seen if they are magnified with a microscope.
<span>A beam of light aimed at a particular area is known as focused. The focused beam is concentrated in one area and not disbursed like other lights there to set mood, but instead to give focus to one individual or group on stage.</span>
X= -2
5x + 15 + 2x = 4x + 9
7x + 15 = 4x + 9 (subtract 4 from each side)
3x + 15 = 9 (subtract 15 from each side)
3x = -6 (divide by 3 on each side)
X= -2
