Examlex
The majority of older adults are senile.
Uracil
A nitrogenous base found in RNA, replacing thymine found in DNA.
Adenine
A purine nucleobase used in forming nucleotides of the nucleic acids DNA and RNA.
Nitrogenous Rings
Structures found in organic compounds where nitrogen atoms are part of a cyclic arrangement.
Genetic Changes
Alterations in the DNA sequence of an organism, which can lead to variations in physical traits and behaviors.
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