Which of the following would be best to differentiate Group A from Group B streptococcus?
A. Hydrolysis of sodium hippurate
B. Production of the enzyme catalase
C. hemolysis activity
D. hydrolysis of esculin
Answer: A. Hydrolysis of sodium hippurate
You might also like to view...
A single unit of hereditary that contains the information for an individual protein is referred to as a ____
Some hep with this, please?
Cancer can be caused by mutations. Genetic analysis of Anna Karenena's tumor shows that the cell proliferation was triggered by a somatic mutation in the MYC gene, causing this gene to be inappropriately activated
Anna is concerned about passing this cancer on to the children she plans to have in the future. Should this be a concern? A. Yes, she should worry because tumor growth was triggered by a genetic change and mutations are passed on through cell divisions. B. No, this is not something to worry about because mutations in cancer cells cannot be passed on in cell division. C. No, she should not worry about her children because this did not occur in a germline cell.
Contrast animal relationships based on molecular data versus based on morphological and
developmental data.
What will be an ideal response?The lionfish is a venomous fish found primarily in the Red Sea and the Indian Ocean. In the 1990s, lionfish were accidentally released into the Atlantic Ocean, where they found abundant resources and favorable environmental conditions. Which of the following scenarios is most likely to result in the lionfish having a major impact on the communities into which they were introduced?
(A) With no natural predators, the lionfish population will become very large. (B) Some native species of invertebrates will develop a resistance to lionfish venom. (C) Random mating will allow the lionfish population to reach Hardy-Weinberg equilibrium. (D) A virus that specifically infects lionfish will become more prevalent.