Compact biological entities with little more than a handful of genes and a proteincoat, viruses lend themselves to engineering.
病毒是只有少数基因和蛋白外壳的紧凑型生物实体,对生物工程有很大作用。
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Soybeans, an important global crop grown for oil and protein, come in various sizes and in several hull or seed coat colours, including black, brown, blue, yellow and mottled.