Each codon either codes for an amino acid or tells the cell to stop making a protein chain.
每一个密码子或者编码一种氨基酸，或者告诉这些细胞停止生产这个蛋白质链。
2
Then they were fingerprinted, blindfolded and put in a cell, then stripped naked, searched, deloused, heads shaved, given a uniform, a number and had a chain placed around one foot.
The zooplankton, which encompass a wide range of little organisms from single-cell protozoa to creatures such as jellyfish, krill and copepods, provide the basic link in the ocean food chain.