Assertion: chromosome's type | /r/HasProperty | adenine
Facets:
Source sentences:
text: There are four types of base: adenine (A), thymine (T), guanine (G) and cytosine (C).
text: This long ladder of DNA is made up of four types of nucleotides – adenine, guanine, cytosine and tyrosine – which are the strings that tie the helix together.
text: DNA is made up of small chemical building blocks called "nucleotides" or "bases," which come in four types: adenine (A), guanine (G), cytosine (C) and thymine (T).