Lecture notes in Microbiology

Microbiology MCQ 02 Practice Questions Part 2 with Answer Key and Explanations


microbiology quizzes with answer key

MICROBIOLOGY MCQ-02
(Biology / Life Sciences MCQ: Multiple Choice Questions in Microbiology)

Quizzes on Microbiology: Practice Test Part 2
(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. Glucans, Mannans and Chitin are found to be present in the cell wall of ______

a.       Plants
b.      Eubacteria
c.       Fungi
d.      Actinomycetes

2.  _____ is a synthetic Antimicrobial drug against Mycobacterium tuberculosis.

a.       Penicillin
b.      Tetracycline
c.       Erythromycin
d.      Isoniazid

3. Who isolated Streptococcus pneumonia for the first time?

a.       Robert Koch
b.      Edward Jenner
c.       Antony von Leewenhock
d.      Louis Pasteur

4. Botulinum toxin is a ________.

a.       Protein
b.      Lipid
c.       Sugar
d.      Nucleic acid

5. Tear drops are rich in ___________.

a.       Amylase
b.      Phosphatase
c.       Lysozyme
d.      Protease

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Lecture notes in Microbiology

Microbiology MCQ 01 Practice Questions Part 1 with Answer Key and Explanations


microbiology quizzes

MICROBIOLOGY MCQ-01
(Biology / Life Sciences MCQ: Multiple Choice Questions in Microbiology)

Quizzes on Microbiology: Practice Test Part 1
(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 process in which all living cells, spores and viruses are completely destroyed from an object is called _____.

a.       Disinfection
b.      Pasteurization
c.       Sterilization
d.      Antisepsis

2. UHT sterilization involves high temperature exposure of objects for _____.

a.       1 – 3 seconds
b.      1 – 3 minutes
c.       1 – 3 hours
d.      10 – 30 hours

3.  _______ is an antiseptic.

a.       Chlorine
b.      Copper Sulphate
c.       Ozone
d.      70% ethanol

4. Error rate of Taq DNA polymerase is _____

a.       10-4
b.      10-14
c.       10-24
d.      10-40

5. The best form of DNA to transform E. coli is ______.

a.       Linear
b.      Covalently closed
c.       Nicked circles
d.      Nicked linear

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ICMR JRF Practice Question Paper for July 2016 Examination (Part 5)


icmr papers for practice

(1). ABA catabolism is mediated by

a.       ABA-8’ carboxylase
b.      ABA-8’ hydroxylase
c.       ABA-8’ aminotransferase
d.      ABA-8’ oxygenase

(2). Nodulating genes in Rhizobium are influenced by the presence of which one of the following in the roots?

a.       Flavones
b.      Lignin
c.       Tannins
d.      Cellulose

(3). Which of the following techniques is used for the evaluation of phylogenetic trees?

a.       Null hypothesis
b.      Bootstrapping
c.       Chi-square
d.      Probability

(4). One PAM means one accepted point mutation per

a.       102 residues
b.      10 residues
c.       103 residues
d.      104 residues

(5). Intestinal flora cannot digest

a.       Cellulose
b.      Lignin
c.       Pectin
d.      Starch

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ICMR JRF Model Question Paper July 2016 Part 4 (ICMR JRF Mock Test)


ICMR JRF Life Science Exam July 2016
(Practice Questions with Answer Key Part 4)

icmr jrf july 2016 question paper

..

(1). What are zooxanthellae?

a.       Deep sea dwelling brightly pigmented fish
b.      Algae living in corals
c.       A species of crab
d.      Xanthomonas infected zooplankton

(2). Hemophilia A and Hemophilia B have nearly identical phenotypes, but they result from mutations in different gens on the X chromosome. This is an example of

a.       Locus heterogeneity
b.      Epistatic interaction
c.       Double heterozygosity
d.      Variable expressivity

(3). Natural killer cells can be detected in human peripheral blood using

a.       Anti-cd3 antibody
b.      Anti-cd25 antibody
c.       Anti-cd69 antibody
d.      Anti-cd16 antibody

(4). Balanced genetic polymorphism occurs when there is selection against

a.       Heterozygotes
b.      All genotypes
c.       All homozygotes
d.      Only homozygous recessive

(5). Xth nerve is an example of

a.       Mixed cranial nerve
b.      Sensory cranial nerve
c.       Spinal nerve
d.      Motor nerve

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mcq biology

MCQ on Cell Membrane Structure and Function with Answer Key Part 2


Cytology MCQ-03

mcq on plasma membrane

Practice Questions on Plasma Membrane: Structure & Functions Part-2

 (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 cleavage of spectrin network in the cell by the proteolytic enzyme calpane indicate:

A.      Apoptosis of cell
B.      Necrosis of cell
C.      Cellular inflammation
D.     Phagocytosis by macrophages

(2). At physiological conditions, cholesterol in the plasma membrane:

A.      Increase the durability of plasma membrane
B.      Increase the permeability of plasma membrane
C.      Decrease the durability of plasma membrane
D.     Decrease the permeability of plasma membrane

A.      A, B
B.      A, C
C.      A, D
D.     B, D

(3). The molecular basis of MN blood group in human is

A.      Difference in the amino acid sequence in the Glycophorin
B.      Difference in the carbohydrate sequence in Glycophorin
C.      Difference in folding pattern of Glycophorin
D.     Difference in the distributional pattern of band 3 and glycophorin proteins in the plasma membrane of RBC

(4). Which of the following type of movement is least possible for a phospholipid in the plasma membrane?

A.      Flexion
B.      Rotation
C.      Lateral diffusion
D.     Flip-flop

(5). Spectrin-ankyrin network of plasma membrane is essential for all features of bio-membrane except:

A.      Anchoring specific ion channels in the plasma membrane
B.      Anchoring specific ion exchangers in the plasma membrane
C.      Anchoring specific ion transporters in the plasma membrane
D.     Anchoring Fo particle of ATP synthase in the plasma membrane

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