Examlex
Critically discuss the stages in the presidential election system, defending in a balanced fashion how democratic you think the process is.
DNA Mutation
A change in the nucleotide sequence of the DNA molecule, which can lead to variations in physical traits and health conditions.
Nucleotide Sequence
The precise order of nucleotides within a DNA or RNA molecule, which constitutes the genetic information of an organism.
Purines
Nitrogen-containing organic compounds that form part of the structure of nucleic acids, including adenine and guanine.
Guanine
One of the four main nucleobases found in the nucleic acids DNA and RNA, which pairs with cytosine.