1 I don't know what 10 year old boys are into anymore; my advice is to ask him what we wants for the cake or cupcakes. 2  If it's a surprise (or if he doesn't care as long... 3  10 is a hard age for cake because he's getting big, but I've had some recent luck impressing some 13 year old boys. 10 is a hard age for cake because he's getting big, but I've had some recent luck impressing some 13 year old boys. 2  You can see them on my myspace page (you donât h... 3  First, Pump it up is a great place. 4  My daughter celebrated her 6th birthday there.
Negative Staining- Principle, Reagents, Procedure and Result 3.95/5 (38) Negative Staining- Principle, Reagents, Procedure and Result. The main purpose of Negative staining is to study the morphological shape, size and arrangement of the bacteria cells that is difficult to stain. eg: Spirilla. It can also be used to stain cells that are too delicate to be heat-fixed.
- Gram Stain -. Gram stain is probably one of the most commonly used staining procedures used in the field of microbiology. It is one of the differential stains that are used to characterize bacteria in one of two groups: either gram positive bacteria or gram negative bacteria.