Claim: Streptococcus is genus that gives a negative result in the Gram stain test.
Evidence: Streptococcus is a genus of coccus -LRB- spherical -RRB- Gram-positive bacteria belonging to the phylum Firmicutes and the order Lactobacillales -LRB- lactic acid bacteria -RRB-.
Gram-positive bacteria are bacteria that give a positive result in the Gram stain test , which is traditionally used to quickly classify bacteria into two broad categories according to their cell wall.