I think the answer is, Echocardiograph :)
That would be a sunspot, I believe.
Hope it helps!
If equal amounts of both types of nucleotides (dNTPS and ddNTPs) were used in each reaction then after gel electrophoresis and visualization, SHORT FRAGMENTS COULD BE FOUND AND THE SEQUENCES THAT ARE CLOSER TO THE PRIMERS COULD ONLY BE READ.
Producers. If we didn’t have producers we wouldn’t have all the other layers of our food chain