... proteins; but the proteins can not be produced EXCEPT at the direction of the DNA cell. This "manufacturing system" had to have come into existence simultaneously with the DNA cell. Chemistry Professor John Walton(1977) of Scotland (from whence came the now-famous sheep- cloning) said "the origin of the genetic code presents formidable unsolved problems. The coded information in the ... ...

• Word Count: 2793
• Approx Pages: 11
• Has Bibliography
• Grade Level: High School

... known as a greeting rumble. Animals partake in play that they seem to enjoy greatly, and there seems to be no other goal than to play. Studies in the field of chemistry have shown that play is enjoyable. Studies have shown that the level of dopamine increases in rats when anticipating the chance to play. Also reptiles such as iguanas exhibit sensory ... ...

• Word Count: 1271
• Approx Pages: 5
• Grade Level: High School