Author: qnasb27

Syphillis is caused by a. Staphylococcus aureuss b. Yersinia psdtis c. Treponema pallidum d. Streptococcus syphilitis

Nergibodies produced by rabies virus show characteristic _____ inner granues a. Basophilic b. Eosinophilic c. Neutrophilic d. Acidophilic

The widely used yeast for the production of single cell protein is a. Saccharomyces cerevisiae b. Rhizopus c. Candida utilis d. All of the above

What is the strength of the bond between antigen and antibody? a. Affinity b. Avidity c. Covalent d. None of these

Which component of the bacterial cell contains alternating units of N-acetyl-D-glucosamine and N-acetylmuramic acid inaB-(l-4)-linkage? Q. Endotoxin R. Flagella S. Mesosome T. Mucopeptide U. Pili.

Which component of the bacterial cell wall is responsible for protection of the delicate protoplast from the effects of the high internal osmotic pressure? V. Capsule W. Endotoxin X. Mucopeptide Y. Somatic...

Which property will NOT differentiate fungi from bacteria? L. Formation of aerial hyphae in culture M. Possession of mitochondria N. Presence of nuclear membrane O. Production of sexual spores P. Synthesis...

Which material is present in both fungi and mycoplasmas but absent from bacteria? F. Chitin G. Chlorophyll H. Lipid J. Muramic acid K. Sterol.

Which of the following are true of cystic fibrosis? a) Chronic liver disease is present in 75% of adults with cystic fibrosis b) The most common abdominal MRI finding is fatly infiltration of the pancreas...

Which of the following are true regarding Behcet's syndrome? a) The gastrointestinal tract is involved in up to 40% of cases b) The jejunum is the most common site involved within the gastrointestinal...

In carcinoma of the oesophagus, which of the following are true? a) Oesophageal cancer is associated with coeliac disease b) Pericardial effusion suggests unresectability c) Five-year survival in oesophageal...

In ultrasonography of the renal tract, which of the following are true? a) Pregnancy-related renal dilatation is present by the tenth week of gestation b) In pregnancy-related dilatation of the collecting...

Which of the following are true regarding testicular tumours? a) Seminomas are highly radiosensitive b) About 90% of non-germ cell tumours are benign c) Lymphoma typically presents as a focal hypoechoic...

Which of the following liver lesions may demonstrate signal loss on out-of-phase (opposed phase) MRI? a) Hepatocellular carcinoma b) Cholangiocarcinoma c) Lymphoma d) Hepatocellular adenoma e) Haemangioma

In the imaging of acute testicular torsion, which of the following are true? a) Surgery is successful in 20% of patients who present between 12 and 24 hours after onset of symptoms b) On sonography, a...

Which of the following are true regarding fibrolamellar hepatocellular carcinoma? a) The majority are associated with elevated alphafetoprotein b) A central scar is present in 50% of cases on ultrasonography...

In abdominal lymphoma, which of the following are true? a) Multifocal nodules are the most common pattern of splenic involvement b) Splenic involvement is reliably diagnosed with magnetic resonance imaging...

Regarding hepatocellular carcinomas, which of the following are true? a) They are commonly hyperechoic on ultrasonography b) The majority are hyperdense during the arterial phase on CT c) The majority...

Which of the following are true regarding the kidney? a) The presence of cyst calcification in patients with adult polycystic kidney disease confers a high risk of renal malignancy b) The ipsilateral adrenal...

Which of the following are true regarding trauma to the gastrointestinal tract? a) Acutely clotted blood within the abdomen typically' has CT attenuation values of 50-60 Hounsfield units (HU) b) The terminal...