The least probable type of tRNA gene to move within the genome is one with a somewhat repetitive DNA sequence.
Abstract. The majority of the nuclear DNA in most eukaryotic genomes is composed of repetitive DNA, which are sequence motifs repeated hundreds or thousands of times throughout the genome.
Repetitive DNA sequences are abundant in eukaryotic genomes and are present in multiple copies (thousands, in some cases). The term "unique-sequence DNA" is used to describe the coding sections of genes, which are normally found in a single copy per haploid genome.
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