Which structure can help bacterium to settle down in host ( )
A: metachromatic granules
B: spore
C: lipopolysaccharide
D: pilus
A: metachromatic granules
B: spore
C: lipopolysaccharide
D: pilus
举一反三
- Which form is transformation ( ) A: genetic substance was transmitted from donor bacterium to receptor bacterium by F pilus B: genetic substance was transmitted from donor bacterium to receptor bacterium by vector phage C: Free DNA segment from donor bacterium directly was ingested into receptor bacterium D: prophage was integrated into bacterial chromosome
- 鞭毛（）。 A: B: CApsulE C: D: flAgEllum E: F: pilus G: H: sporE I: J: tEiChoiCACiD
- Economists are interested in all the factors that can help to__________ the extent to which a price change will affect supply and demand in the market. A: resort B: lift C: predict D: settle
- Which can be used to settle middleman trade? ( )
- 必须用电镜才能观察的细菌结构是 A: capsule B: flagellum C: pilus D: spore E: metachromatic-granule