If I recall correctly, I was taught:
The particles in the air (dust, smoke, etc.) increase in density the farther you look. Causing a "fog" effect as you look across large distances. Including shore to shore of an ocean.
RNA polymerase binds to the lac promoter and begins transcribing
the stretch of DNA to messenger RNA.
Therefore, in other words, the stretch of DNA is expressed. The DNA sequence of
the lac promoter 'signals' where the RNA
polymerase will bind and where transcription
will begin. Promoters are found upstream of a gene to be transcribed.
Atmospheric pressure is sometimes known as barometric pressure. Air pressure is <span>exerted by the weight of </span>air<span> in the atmosphere of our planet Earth.
Air pressure is measured in an instrument called</span><span> barometer.</span>