Answer: The lagging strand glows more because its RNA primer is nearer the replication fork.
During DNA replication process, both the strands of DNA are replicated simultaneously in opposite direction. One strand is replicated continuously and known as leading strand while the other strand is replicated discontinuously and known as lagging strand. The leading strand has only one primer attached to it while the lagging strand
The phrase that energy stays conserved in an energy transformation is based on the fact that energy can not be created or destroyed. Example, in a simple pendulum, the bob does a to-fro motion. When the bob goes up it becomes stationary for a second and then comes down at some speed. Here the potential energy of the bob at the highest point undergoes transformation into kinetic energy at motion. Due to the fact that energy is conserved it keeps on performing the oscillatory motion.
I believe the answer is DNA or Deoxyribo Nucleic Acid