Compléter General conceptsVersion en ligne Complete the following sentences. par Iris Usach Pérez 1 prokaryotic gametes lagging somatic nucleoside nucleotide four leading three eukaryotic 20 In cells , a genome consists of a single DNA molecule . There are amino acids , but there are only nucleotide bases in DNA . A is formed by a sugar and a nitrogenous base . The strand is synthesized as a series of segments called Okazaki fragments . A chromosome has hundreds or even thousands of replication origins . A codon consists of nucleotide bases . Human are reproductive cells . In the strand only one primer is required . Human cells are the non - reproductive cells . A consists of a nitrogenous base , a sugar and a phosphate group .
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