If you're familiar with Annie Agar, you know that she never misses ... Notre Dame defeated Georgia in the Sugar Bowl on Thursday thanks to an incredible where the Fighting Irish scored 17 points ...

This is in contrast to Streptococcus species, whose growth is selected against by this high salt agar (plate on the right in the picture below). The differential ingredient in MSA is the sugar ...

Fermentation of this sugar results in an acidic pH and causes the pH indicator ... form bright pinky-red colonies (plate pictured on the left here). MacConkey agar is commonly used to differentiate ...