The smallest segment of DNA that codes protein?

Difference in shape of a typical stream carved valley compared to a typical glacial carved valley? What are the positive effects on quarrying limestone? What are the sublevels and diffrentiate? How many months are there in 2 decades? Forms when ozone and vehicle exhaust react with sunlight? How do you stop a dog barking at fireworks? What is produced during nuclear fission and nuclear fusion? What diseases are caused by unicellular organisms? Where can water erosion be found? Who discovered NMR? Is Eris a terrestrial or gas planet? SI unit for volume? How does temperature contorls the monsoon winds? Why do astronomers have to look at the sun through special filters? Oceans become deeper moving away from ridges due to? What is soft stage or plastic range is soldering? What is the name for the modern era which began approximtely 65 million years ago with the mass extinction of the dinosaurs? What are 10 natural icons of Australia such as Uluru? What type of volcano is mount Fuji and why? What is The location marked by the black rectangle is characterized by high temperature and pressure What rock type would mostly form in this location?