5000 Plus MCQs for Lab Technician and Technologists are designed to test the knowledge and proficiency of laboratory professionals who work in the field of clinical laboratory science. These questions cover a wide range of topics related to laboratory science, including anatomy, physiology, microbiology, chemistry, and hematology.
3301 to 3350 MCQs for Lab Technician and Technologist Exam Preparation
If You like then share this to your friends and other social media.
If You have any question and suggestions then please Contact us Here
Questions 3301 to 3350
- The method of DNA replication proposed by Watson and Crick is
a. Semi conservative ✔️
b. Conservative
c. Dispersive
d. Rolling loop - The distance between each turn in the helical strand of DNA is
a. 20 Ao
b. 34 Ao ✔️
c. 28 Ao
d. 42 Ao - Self-replicating, small circular DNA molecules present in bacterial cell are known
a. Plasmids ✔️
b. Cosmids
c. Plasmomeros
d. plastides - Western blotting is the technique used in the determination of
a. RNA
b. DNA ✔️
c. Proteins
d. All of these - m RNA synthesis from DNA is termed
a. Transcription ✔️
b. Transformation
c. Translation
d. Replication - Western blotting is a technique used in the determination of
a. DNA ✔️
b. RNA
c. Protein
d. Polysaccharides - Building blocks of Nucleic acids are
a. Amino acids
b. Nucleosides
c. Nucleotides ✔️
d. Nucleo proteins - DNA finger printing is based on
a. Repetitive sequences
b. Unique sequences ✔️
c. Amplified sequences
d. Non-coding sequences - The enzyme required for DNA from RNA template:
a. RNA polymerase
b. Reverse transcriptase ✔️
c. DNA polymerase
d. Terminal transferase - Double standard RNA is seen in
a. Reo virus ✔️
b. Rhabdo virus
c. Parvo virus
d. Retro virus - Example for DNA viruses:
a. Adeno virus
b. Bacteriophage T1, T2, T3, T4, T5, T6
c. Papova virus
d. Herpes virus and cauliflower moisaic
e. All of the above ✔️ - The following are the RNA viruses, except
a. Reo viruses
b. Retro viruses
c. Bacteriophage F C
d. Tmv and Bacteriophages Ms2, F2
e. Dahila mosaic virus and Bacteriophages F × 174, M12, M13 ✔️ - The two strands of DNA are joined non covalently by
a. Ionic bonds
b. Covalent bonds
c. Hydrogen bonds between bases ✔️
d. Polar charges - The bases Adenine and Thymine are paired with
a. Double hydrogen bonds ✔️
b. Single hydrogen bonds
c. Triple hydrogen bonds
d. Both second and third - The no. of hydrogen bonds existing between Guanine and Cytosine are
a. 5
b. 2
c. 3 ✔️
d. None of these - The length of each coil in DNA strand is
a. 15 Ao
b. 34 Ao ✔️
c. 30 Ao
d. 5 Ao - Nuc le ic ac ids are h igh ly charged polymers due to
a. There is phosphodiester bond between 5’-hydroxyl of one ribose and 3’–hydroxyl of next ribose ✔️
b. They have positive and negative ends
c. Nucleotides are charged structures
d. Nitrogenous bases are highly ionized compounds - The best studied example for specialized transduction is
a. P1 phage
b. P22 phage
c. ë-phage ✔️
d. Both a and c - The diagrammatic representation of the total no. of genes in DNA is
a. Genome
b. Gene map ✔️
c. Gene-structure
d. Chromatin - During specialized transduction
a. Large amound of DNA is transferred
b. A few no. of genes are transferred ✔️
c. Whole DNA is transferred
d. None of these - The cell donating DNA during transformation is
a. Endogenate
b. Exogenate ✔️
c. Mesozygote
d. Merosite - Genetic information transfer DNA to RNA is called –
a. Transcriptase ✔️
b. Transduction
c. Transformation
d. Recombination - The gene transfer occurs by –
a. Transformation ✔️
b. Transduction
c. Conjugation
d. Cell fusion - Which of the following is called serum Hepatitis?
a. HCV
b. HAV
c. HBV ✔️
d. HIV - Which of the following was a non-neural vaccine for rabies?
a. HEPV ✔️
b. Card vaccine
c. BPL
d. Simple
- Which type of antibodies will associate in blood cell coagulation?
a. IgE
b. IgA
c. IgM ✔️
d. IgG - In a antigen haptens are
a. Immunogenic
b. Non-immunogenic ✔️
c. Antigenic
d. None of these - The antibody that is first formed after infection is
a. IgG
b. IgM ✔️
c. IgD
d. IgE - Antibodies in our body are produced by
a. B-lymphocytes ✔️
b. T-lymphocytes
c. Monocytes
d. RBC’s - The points at which crossing over has taken place between homologus chromosomes are called
a. Chiasmata ✔️
b. Synaptonemal complex
c. Centromeres
d. Protein axes - How much of globulin is present in human serum?
a. 8% ✔️
b. 12%
c. 16%
d. 4% - The substance wh ich acts as ant imetabolites are called
a. Activators
b. Substrates
c. Inhibitor ✔️
d. Cofactor - Enzymes are chemically
a. Lipids
b. Proteins ✔️
c. Carbohydrates
d. None of these - Monoclonal antibodies are produced by
a. Hybridoma technology ✔️
b. Biotechnology
c. Fermentation Technology
d. None of these - First line of body defence is
a. Antibody molecules
b. Unbroken skin ✔️
c. Antigen molecules
d. Phagocytic cells - What is the strength of the bond between antigen and antibody?
a. Affinity
b. Avidity ✔️
c. Covalent
d. None of these - 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 - Analysis of protein antigen is by
a. Southern blot
b. Northern blot
c. Western blot ✔️
d. None of these - Which of the following can provide naturally acquired passive immunity for the new born.
a. IgA
b. IgG ✔️
c. IgE
d. IgM - AIDS disease is caused by a virus which belongs to
a. Retro virus group ✔️
b. Rhabdo virus group
c. Hepatitis virus group
d. Adeno virus group - Comp lement based agglutination reaction is known as
a. Haem agglutination ✔️
b. Coplement fixation
c. Conglutination
d. Schultz Dale Phenomenon - Reverse transcriptase is an enzyme involved in the synthesis of
a. DNA ✔️
b. Soluble RNA
c. m-RNA from DNA
d. Nucleotides - The cellular immune response is mediated by
a. B cells ✔️
b. T cell
c. BT cells
d. Endothelial cells - The major immunoglobulin present in the human serum is
a. IgG ✔️
b. IgA
c. IgE
d. IgG - Reagenic type antibody is
a. IgG
b. IgA
c. IgM
d. IgE ✔️ - Blood group antigens are
a. Species specific
b. Isospecific ✔️
c. Autospecific
d. Organ specific - The reaction of soluble antigen with antibody is known by
a. Precipitation ✔️
b. Flocculation
c. Agglutination
d. Complement fixation - Interferon is composed of
a. Lipids
b. Lipoprotein ✔️
c. Glycoprotein
d. Nucleic acid
The questions are typically designed to assess the technical skills and knowledge required for the laboratory profession, including the ability to analyze laboratory test results, perform laboratory procedures, and maintain laboratory equipment.
To prepare for these MCQs, candidates should have a thorough understanding of the key concepts and principles of laboratory science. They should also be familiar with common laboratory equipment and procedures, as well as laboratory safety protocols.
Candidates may also benefit from studying specific laboratory science textbooks or taking online courses that cover the material tested in the MCQs. Additionally, practicing sample MCQs and reviewing the answers can help candidates identify areas where they may need to improve their knowledge or skills.
Overall, the MCQs for lab technologists are designed to be challenging and comprehensive, requiring candidates to demonstrate a high level of proficiency in the field of laboratory science.
Possible References Used
