The most frequently used staining is () A: HE staining B: orcein staining C: toluidin blue staining D: Wright or Giemsa staining E: silver staining

HE staining

Please briefly state the mechanism ofGram staining.

Gram staining is a method of staining used to distinguish: ( ) A: bacterial types B: bacterial species C: bacterial features D: bacterial sizes

Gram staining is the most commonly used staining method, and its practical significance does not include () A: Identification of bacteria B: selection of antibiotics C: understanding of bacterial pathogenicity D: understanding of cell staining E: observing the special structure of bacteria

Which of the following staining solution are used in the bacterial Gram staining method？ ( ) A: Crystal violet B: Iodine solution C: Ethanol D: Safranin

Gram staining is the most commonly used staining method, and its<br/>practical significance does not include () A: Identification<br/>of bacteria B: selection of antibiotics C: understanding of bacterial<br/>pathogenicity D: understanding of cell staining E: observing the<br/>special structure of bacteria

免疫金银染色(immunogold silver staining，IGSS)

All tumours from AOM treated mice were _____ to histological examination after routine processing and haematoxylin and eosin staining.

Apoptotic<br/>cells can be stained positively when subjected to acidic lysosomal<br/>SA-β-GAL staining. (<br/>)