ICMR JRF 2017 Model Question Paper with Answer Key (ICMR MCQ – 07)


ICMR JRF July 2017 Model Questions

ICMR JRF Life Science Exam July 2017
Model Question Paper (ICMR MCQ – 07)

(Practice Questions with Answer Key)

(1). Which of the following characteristic differentiate lysosome from other cell organelles?

a.       Lysosome is a micro organelle
b.      Lysosome is a single membrane bounded organelle
c.       Lysosomes present only in plants
d.      All the above

(2). The main function of carotenoid in photosynthesis is:

a.       Light absorption
b.      Prevention of photo-oxidation of chlorophyll
c.       Acts as light absorbing center
d.      Acts as the source of electrons

(3). Most essential features required to maintain a plasmid in a host cell is:

a.       Ability to transfect cells
b.      Antibiotic resistance
c.       Origin of replication and marker for selection
d.      Capacity to insert into the host genome

(4). Which of the following is a softwood tree?

a.       Mahogany
b.      Sal-tree
c.       Rosewood
d.      Cyperus

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Biotechnology Lecture Notes

Kerala PSC Biotechnology Lecturer Exam 2009 Original Solved Question Paper (Download PDF)


Biotechnology Assistant Professor Kerala PSC

Kerala PSC Biotechnology Lecturer / Assistant Professor Recruitment Exam June 2009
Original Solved Question Paper
(Question Paper Code: 181/2009)

Original question paper of Kerala PSC Biotechnology Lecturer/Assistant Professor examination conducted by Kerala PSC (Public Service Commission) on 22/05/2009 (Q. Code 181/2009) for the appointment of Biotechnology Lecturer/Assistant Professor in Government Colleges of Kerala under the Directorate of Collegiate Education, Trivandrum, Kerala.

To Download the Question Paper, Please Click on the Link below…

To Download the Question Paper, Please Click on the Link below…

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Biotechnology Lecture Notes

MCQ on Industrial Biotechnology with Answer Key (Biotechnology MCQ 03)


MCQ on Fermentation Technology

BIOTECHNOLOGY MCQ-03
(Biology / Life Sciences MCQ: Multiple Choice Questions in Biotechnology)

MCQ on Industrial Biotechnology
(Sample/Model/Practice Questions for CSIR JRF/NET Life Science Examination, ICMR JRF Exam, DBT BET JRF Exam, GATE BT and XL Exam, ICAR JRF NE Exam, PG Entrance Exam, JAM Exam, GS Biology Exam and Medical Entrance Exam)

(1). Which of the following materials is used as a bio-plastic?

a.       Polystyrene
b.      Polypropylene
c.       Polyhydroxybutyrate
d.      Dextran

(2). A Trickling filter is used for:

a.       Antibiotic production
b.      Beer production
c.       Citric acid manufacturing
d.      Waste water treatment

(3). A double spiral heat-exchanger is a:

a.       Direct heat exchanger
b.      Indirect heat exchanger
c.       A temperature control device
d.      Thermostat

(4). The importance of Yeast Extract in the industrial fermenter is:

a.       Act as vitamin and micronutrient source
b.      Acts nitrogen source
c.       Acts as carbon source
d.      Acts as carbon and vitamin source

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Biotechnology Lecture Notes

MCQ on Genetic Engineering with Answer Key (MCQ 02)

Human Genome Project Logo

Logo of Human Genome Project (HGP); The Vitruvian Man by Leonardo da Vinci (image source: cc wikipedia)


BIOTECHNOLOGY MCQ-02
(Biology / Life Sciences MCQ: Multiple Choice Questions in Biotechnology)

MCQ on Genetic Engineering (Basics)
(Sample/Model/Practice Questions for CSIR JRF/NET Life Science Examination, ICMR JRF Exam, DBT BET JRF Exam, GATE BT and XL Exam, ICAR JRF NE Exam, PG Entrance Exam, JAM Exam, GS Biology Exam and Medical Entrance Exam)

1. The first crop plant genome sequenced

a.       Maize
b.      Wheat
c.       Rice
d.      Barley

2. Urea and Formamide can:

a.       Increase Tm of DNA
b.      Decrease the Tm of DNA
c.       Helps faster re-annealing of DNA
d.      Does not effects denaturation of DNA

3. The chromogenic substrate of X-gal is:

a.       5-chloro-4-bromo-3indolyl-beta-D-galactoside
b.      5-bromo-4-chloro-3indolyl-beta-D-galactoside
c.       5-chloro-5-bromo-3indolyl-beta-D-galactoside
d.      5-bromo-5-chloro-3indolyl-beta-D-galactoside

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Free Net Life Science Study Materials

CSRI JRF NET Life Sciences June 2017 Model Question Paper Set- 4


biological significance of hydrogen bonds in water

CSIR JRF/NET Life Science Exam June 2017 (I)
Model Question Paper 4/5
(CSIR MCQ011: Practice Questions with Answer Key)

1.  Penicillin-resistant bacteria produce β-lactamase which inactivates penicillin by:

a.       Esterifying the carboxyl group
b.      Oxidizing S atom
c.       Hydrolyzing the side chain
d.      Hydrolyzing the C-N bond

Ans. (d)

β-lactamases or penicillinase are a class of enzymes produced by some bacteria which degrade penicillin antibiotic and thereby impart resistance against penicillin. All penicillin antibiotics contain a β-lactum ring structure which is essential for the antibiotic activity. The β-lactamase enzyme will degrade the β-lactum ring and thus inhibit the antibiotic properties.

2. Pseudo-murein is present in cell wall of:

a.       Streptococci
b.      Staphylococci
c.       Methanococci
d.      Micrococci

Ans. (c). Methanococci

Methanococci is an Archaebacteria.

Pseudo-murein or pseudo-peptidoglycan is a major cell wall component of some Archaebacteria. It is structurally different from the peptidoglycan of the true bacteria. However, it is functionally similar to the peptidoglycan wall of bacteria. Pseudo-murein is a hetero-polysaccharide of N-acetylglucosamine and N-acetyltalosaminuronic acid connected by β-1,3-glycosidic bonds. Lysozyme enzyme is unable to degrade the pseudo-murein cell wall.

Learn more: Comparison table of Bacteria, Archaea and Eukarya

3. Bacteria that can penetrate intact corneal epithelium is:

a.      Pseudomonas aeruginosa
b.      Staphylococus aureus
c.       Listeria monocytogenes
d.      Yersinia pestis

Ans. (b). Staphylococus aureus

4. Which of the following bacterial toxins does not have ADP-ribosyl transferase activity:

a.       Cholera toxin
b.      Diphtheria toxin
c.       Exotoxin A
d.      S aureus α toxin

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