Codon Codon is a combination of three successive nucleotides in a DNA or RNA strand. All the nucleic acids, DNA and RNA, have nucleotides sequenced as a set of codons. Each nucleotide consists of a nitrogenous base, one of A, C, T/U, or G.
Phases of the moon are simply how much sun is hitting the surface of the moon, with the moon being between the earth and the sun. Lunar eclipses occur when a conjunction between the earth and the sun... with the earth casting a shadow on the full moon.
One may occur when the moon is full. A Lunar eclipse happens when the sun moon and earth are all lined up, with earth in between the sun and the moon. At this position, withâ¦ the sun behind us and the moon in front of us, we see a full moon, as the light is reflected back of the surface.