nucleotide
🇺🇸
/ˈnuːkliətaɪd/
🇬🇧
/ˈnjuːkliətaɪd/
A nucleotide is the basic building block of DNA and RNA, made up of a sugar, a phosphate group, and a nitrogenous base.
The genetic information in a cell is stored in the sequence of nucleotides in DNA.
細胞中的遺傳信息儲存在DNA中核苷酸的序列裡。