These vectors can have different features (such as the size of DNA-insert they can accommodate) and include plasmids, cosmids, and yeast artificialchromosomes (YACs).
这些载体具有不同的特征，包括质粒、粘粒和酵母人工染色体。
2
They knew from past studies that it was common for organisms exposed to artificial selection to carry evidence of such tinkering in the form of duplicate chromosomes and genes.