Comp Med Oct 2016 random questions

Question 1

What gram negative organism has recently been identified in the respiratory tract of mice and might confound pulmonary research as a potential pathogen

Answer 1

Bordetella psuedohinzii

Question 2

In nocturnal animals such as mice and rats are cones or rods more prevalent the retina?

Answer 2

Rods

Question 3

What type of virus is Porcine Reproductive and Respiratory Syndrome virus?

Answer 3

Arteriviridea, Arterivirus, RNA

Question 4

What is the cellular tropism of Porcine Reproductive and Respiratory Syndrome virus?

Answer 4

replicates in macrophages (especially alveolar)

Question 5

Name 2 other arteriviruses important in lab animal species.

Answer 5

mouse- lactate dehydrogenase virus

Primate- Simian hemorrhagic fever virus

Question 6

A recent article characterizes Severe HemophiliaA in what breed of dog?

Answer 6

Old English sheep dog

• sex linked, female carriers
• specific point mutation in this case is a C to T transition that creates a premature stop codon in the canine factor VIII gene

Question 7

What is the likely tissue origin of myxomas

Answer 7

fibroblastic

Question 8

genus species the galago

Answer 8

Otolemur garnettii

Question 9

A recent article describes what type of mammary tumor in an Otolemur garnettii

Answer 9

A phyllodes-like