A) ADP-ribosylation of the G regulatory protein B) Inhibition of adenyl cyclase C) Activation of GTPase D) Active absorption of NaCl Answer (Select an option above to get the answer):
(Single Best Answer) Question 54: A 40 years old man underwent kidney transplantation for end stage renal disease. Two months after transplantation, he developed fever and features suggestive of bilateral diffuse interstitial pneumonia. Which one of the following is the most likely etiological agent ?
A) Herpes simplex virus B) Cytomegalovirus C) Epstein - Barr virus D) Varicella Zoster virus Answer (Select an option above to get the answer):
A) It can be a part of the normal flora in some persons B) The serotyping is based on the bacterial outer membrane proteins C) It requires Haemin and NAD for growth in culture medium D) Type b is responsible for invasive disease Answer (Select an option above to get the answer):
(Single Best Answer) Question 56: A 22 years old male patient presents with a complaint of severe itching and white scaly lesions in the groin for past one month. Which of the following is most likely to be the causative agent ?
A) Trichophyton rubrum B) Candida albicans C) Candida glabrata D) Malassezia furfur Answer (Select an option above to get the answer):
(Single Best Answer) Question 57: A patient, resident of Himachal Pradesh presented with a series of ulcers in a row, on his right leg. The biopsy from the affected area was taken and cultured on Sabauraud's Dextrose agar. What would be the most likely causative organism ?
A) Sporothrix schenkii B) Cladosporium spp. C) Pseudoallescheria boydii D) Nocardia brasiliensis Answer (Select an option above to get the answer):
A) Sporothrix schenkii B) Cryptococcus neoformans C) Blastomyces dermatitis D) Histoplasma capsulatum Answer (Select an option above to get the answer):
(Single Best Answer) Question 59: The following phenomenon is responsible for antibiotic resistance in bacteria due to slime production ?
A) Co-aggregation B) Biofilm formation C) Mutation evolving an altered target site for antibiotics D) Mutation evolving a target bypass mechanism Answer (Select an option above to get the answer):
(Single Best Answer) Question 60: An elderly diabetic has left sided orbital cellulites. CT Scan of paranasal sinuses shows evidence of left maxillary sinusitis. Gram stained smear of the orbital exudate shows irregularly branching septate hyphae. The following is the most likely etiological agent ?
A) Aspergillus B) Rhizopus C) Mucor D) Candida Answer (Select an option above to get the answer):