1·For example, the herbicide-resistant gene in GM RR soy was pieced together from a plant virus, two different soil bacteria, and a petunia plant.
举例说，抗草甘膦转基因大豆中的抗除草剂基因，由一种植物病毒、两种不同的土壤细菌，以及一种矮牵牛花植物的基因组合而成。
2·Carmine acetate dyeing, methylene blue dyeing, TTC dyeing and peroxidase settling process were compared in order to seek for a fast determination method of petunia's pollen viability.
通过对醋酸洋红染色法、次甲基兰染色法、TTC染色法和过氧化物酶沉淀法四种方法的比较，寻找快速测定矮牵牛花粉生命力的方法。
3·His favourite flower is petunia.
他最喜欢的花是矮牵牛花。