<span>The dominant motion in the universe is the smooth expansion known as Hubble's Law. In 1929, Hubble estimated the value of the expansion factor, now called the Hubble constant, to be about 500 km/sec/Mpc.</span>
D. mRNA is synthesized from a strand of DNA.
Transcription, hence the root script, means to write. This is the creation of the mRNA "messenger" information.