13. Tetracycline binds to the (A) 30S subunit and inhibits aminoacyl-tRNA binding (B) 50S subunit and inhibits aminoacyl-tRNA binding (C)30S subunit and prevents codon:anticodon interactions (D) 50S subunit and blocks […]
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IIT JAM Biotechnology Previous Year Question paper Topic Microbiology
Bacterial Growth Calculation
12. In an actively growing population from a single bacterium, 1,048,576 cells are present after 20th generation. How many cells were there in 5th generation? Bacterial Growth Calculation: Cells Present […]
IIT JAM Biotechnology Previous Year Question paper Topic Microbiology
Thermophiles, Mesophiles, Psychrophiles and Halophiles Explained
11. Match the following Microorganism Type Growth Condition (i) Thermophile (a) Grows optimal at 37°C (ii) Mesophile (b) Grows optimal at low temperature (iii) Psychrophile (c) Grows optimal at high […]
IIT JAM Biotechnology Previous Year Question paper Topic Microbiology
Bacterial Cell Wall and Glycocalyx Functions
10. Match the following Bacterial Structure Function (i) Cell wall (a) Virulence factor (ii) Glycocalyx (b) Selective permeability (c) Attachment to surfaces (d) Protection from osmotic lysis (A) (i)-(b), (ii)-(d) […]
IIT JAM Biotechnology Previous Year Question paper Topic Microbiology
Enriched Media for Fastidious Microorganisms
9. The enriched media used to facilitate the growth of fastidious microorganisms are (A) Selenite F broth (B) Blood agar (C) Chocolate agar (D) Loeffler’s serum Enriched Media for Fastidious […]
IIT JAM Biotechnology Previous Year Question paper Topic Microbiology
Mechanism Action of Streptomycin, Cycloheximide, Rifamycin & Chloramphenicol
8. Match the following Group I Group II P) Streptomycin 1. Inhibits beta-subunit of RNA polymerase Q) Cycloheximide 2. Inhibits peptidyl transferase activity of 50S subunit R) Rifamycin 3. Inhibits […]
IIT JAM Biotechnology Previous Year Question paper Topic Microbiology
Mannitol Salt Agar (MSA) Test
7. The bacterium that can tolerate high concentrations of salt and also ferment mannitol is (A) Staphylococcus aureus (B) Staphylococcus epidermidis (C) Streptococcus pyogenes (D) Serratia marcescens Staphylococcus aureus Explained: […]
IIT JAM Biotechnology Previous Year Question paper Topic Microbiology
Cause of Lymphatic Filariasis
6. An organism that causes obstruction of lymphatic system in humans is ____. (A) Borrelia burgdorferi (B) Brucella abortus (C) Yersinia pestis (D) Wuchereria bancrofti Wuchereria bancrofti Explained: Cause of […]
IIT JAM Biotechnology Previous Year Question paper Topic Microbiology
Types of Bacterial Flagella
5. Bacteria containing a tuft of flagella that comes out from one pole is called ___. (A) Lophotrichous (B) Peritrichous (C) Monotrichous (D) Amphitrichous Lophotrichous Bacteria Explained: Tuft of Flagella […]
IIT JAM Biotechnology Previous Year Question paper Topic Microbiology
Dipicolinic Acid in Bacterial Endospores
4. Which of the following bacterial component contains “dipicolinic acid”? (A) Endospore (B) Capsule (C) Flagella (D) Pili Dipicolinic Acid in Bacterial Endospores Explained Introduction Bacteria possess several specialized cellular […]
