Examlex
The number of d orbitals in the second principal energy level is
Nucleic Acids
Biopolymers essential to all known forms of life, which carry genetic information in cells and are made up of sequences of nucleotides.
Adenine
One of the four nucleobases in the nucleic acid of DNA that are represented by the letters G–C–A–T.
Nucleic Acids
Large biomolecules essential to all known forms of life, including DNA and RNA, which store and transmit genetic information.
Guanine
One of the four main nucleobases found in the nucleic acids DNA and RNA.
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