Question

1. Distinguish between different types of hemolysis on blood agar.

2. List and describe the steps of a PCR reaction and explain what reagents need to be present and why.

Answer 1

Alpha hemolysis	Beta hemolysis	Gamma hemolysis
The area under the colony becomes green and dark after haemolysis	the area under the colony becomes yellow and transparent after haemolysis	no change in the appearance of blood Agar
Also called as green haemolysis	also called as complete haemolysis	also called as no haemolysis
Shown by bacteria like Streptococcus pneumoniae	shown by bacteria like Streptococcus pyogenes	shown by bacteria like enterococcus faecalis

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