MCQOPTIONS
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MCQOPTIONS
This section includes 5751 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 2601. |
TATAATG sequnce near the RNA start point of phokaryotic promoter is...... |
| A. | NICKS |
| B. | DNA marker |
| C. | pallindrome |
| D. | pribnow box |
| Answer» E. | |
| 2602. |
Genes that are involved in turning on or off the transcription of a set of structural genes are called |
| A. | Polymorphic genes |
| B. | operator gene |
| C. | Rebundant gene |
| D. | Regulatory gene |
| Answer» D. Regulatory gene | |
| 2603. |
For transformation, micro particles coated with DNA are bombarded with gene gun made up of. |
| A. | Platinum or Zinc |
| B. | Silicon or Platinum |
| C. | Gold or tungsten |
| D. | Silver or Platinum |
| Answer» D. Silver or Platinum | |
| 2604. |
Exonucleases cleaving nucleotides one at a time from the end of polynucleotide chain are. |
| A. | Specific for 5’ end of RNA strand |
| B. | specific for 3’ end of RNA strand |
| C. | specific for both 5’ and 3’ ends of nucleotide strand |
| D. | Non- specific for 5’ and 3’ ends of nucleotide |
| Answer» C. specific for both 5’ and 3’ ends of nucleotide strand | |
| 2605. |
PCR and Restriction fragment lenth Polymorphism are the methods for. (AIPMT-2012) |
| A. | genetic transtormation |
| B. | DNA Sequencing |
| C. | DNA finger printing |
| D. | Study of enzymes |
| Answer» E. | |
| 2606. |
The genetic recombinants obtained by in sertion of plasmid into 1 phage genome is called |
| A. | cosmid |
| B. | plasmid |
| C. | phagmid |
| D. | foreign DNA |
| Answer» B. plasmid | |
| 2607. |
Gentic engineering has been sucessfully used for producing ___ (CBSE-2010) |
| A. | trangenic models for studying new treatments for Certain cardiac diseases. |
| B. | transgenic Cow - Rosie which produces high fat milk for making ghee. |
| C. | animals linke bulies for farm work as they have super power. |
| D. | transgenic mice for testing safety of polio Vaccine before use in humans. |
| Answer» E. | |
| 2608. |
What is C - DNA ? |
| A. | circular DNA |
| B. | Cloned DNA |
| C. | DNA produced from reverse transcription of RNA |
| D. | Cytoplasmic DNA |
| Answer» D. Cytoplasmic DNA | |
| 2609. |
Find the incorrrect statement |
| A. | Gene therapy is a genetic engineering technique used to treat disease at molecular level by replacing defective genes with normal genes. |
| B. | Calcitonin is a medically useful recombinant product in the treatment of intetility |
| C. | Bt toxin is a Biodegradable insecticide obtained from bacillis thuringiensis |
| D. | Trichoderma sp. is a biocontrol agent for fungal diseases of plants |
| Answer» B. Calcitonin is a medically useful recombinant product in the treatment of intetility | |
| 2610. |
Enzymes used in PCR is .... |
| A. | taq polymerase |
| B. | gyrase |
| C. | transcriptase |
| D. | hexokinase |
| Answer» D. hexokinase | |
| 2611. |
Matching sequence of DNA between two evidences, one of the criminal with the suspect is known as |
| A. | DNA finger printing |
| B. | DNA amplification |
| C. | Gene maping |
| D. | DNA resolution |
| Answer» E. | |
| 2612. |
In transgenics the experession of transce in the target tissue is known by (CBSE-2004) |
| A. | Enhancer |
| B. | Transgene |
| C. | Promoter |
| D. | Reporter |
| Answer» B. Transgene | |
| 2613. |
What are structure labelled A & B respectively |
| A. | EcoRv restriction endonuclease and E coRv ligase |
| B. | EcoRv ligase and EcoRv nuclease and EcoRvmethlase |
| C. | Eco–– Rv restriction endo EcoRv methylase |
| D. | EcoRv Polymerase and EcoRv methylase |
| Answer» B. EcoRv ligase and EcoRv nuclease and EcoRvmethlase | |
| 2614. |
The linking of antibiotic resistance gene with the plasmid Vector became possible with |
| A. | DNA ligase |
| B. | Exonuclease |
| C. | Endo nuclease |
| D. | DNA Polymerase |
| Answer» D. DNA Polymerase | |
| 2615. |
Which one of the following pair is wrongly matched ? |
| A. | methanogens - Gobargas |
| B. | Yeast - Ethanol |
| C. | Streptomycetes - Antibiotic |
| D. | Coliborms - vinegar |
| Answer» E. | |
| 2616. |
Which one of the following bacteria has found extensive use in genetic engineering work in plants ? |
| A. | Agrobacterium tamefaciens |
| B. | Clostridium septicum |
| C. | Xanthomonas citri |
| D. | Bacilius Coagulens |
| Answer» B. Clostridium septicum | |
| 2617. |
The Prerequisites for biotechnological production of antibiotic is |
| A. | to search an antibiotic producing microorganism |
| B. | to isolate the antibiotic gene |
| C. | to join antibiotic gene with E coli plasmid |
| D. | All of the above (MP PMT 2008) |
| Answer» E. | |
| 2618. |
Molecular scissors, which cut DNA at specific site (Kerala-2004) |
| A. | ligase |
| B. | cellulase |
| C. | pectinase |
| D. | Polymerase |
| Answer» F. | |
| 2619. |
First hormone prepared by genetic engineering is .... |
| A. | Insulin |
| B. | Oxytocin |
| C. | adrenaline |
| D. | Somatotropin |
| Answer» B. Oxytocin | |
| 2620. |
What is the function of Restriction endonuclease ? (AIPMT -2006) |
| A. | Restricts the synthesis of DNA inside the nucleus |
| B. | Synthesizes DNA |
| C. | Cuts DNA molecule randomly |
| D. | cuts DNA molecule at specific sites |
| Answer» E. | |
| 2621. |
Variable number of tender repeats (VTNR) in the DNA molecule are highly useful in |
| A. | monoclonal antibody production |
| B. | DNA finger printing |
| C. | Recombinant DNA technology |
| D. | stem cell culture |
| Answer» C. Recombinant DNA technology | |
| 2622. |
Identify the Plasmid (ET 2004) |
| A. | Alu I |
| B. | Hind III |
| C. | ECORI |
| D. | PBR322 |
| Answer» D. PBR322 | |
| 2623. |
First Biochemical to be Producod commer cially by microbial cloning and genetic engineering is ___ |
| A. | interferom |
| B. | penicillin |
| C. | human insulin |
| D. | Fertility factors |
| Answer» B. penicillin | |
| 2624. |
Which one of the following is a wrong matching of a microbe and its industrial product while the remaining three are correct |
| A. | clostridium butylicum - lactic acid |
| B. | Aspergillis niger cirric acid |
| C. | yeast - statins |
| D. | Acetobacter aceti - acetic acid (CBSE PMT 2011) |
| Answer» B. Aspergillis niger cirric acid | |
| 2625. |
Which of the following pair is correctly matched ? |
| A. | - central dogma - codon |
| B. | - Okazaki fragments - splicing |
| C. | RNA Polymerase - RNA Primer |
| D. | Restriction enzymes - genetic engineering |
| Answer» D. Restriction enzymes - genetic engineering | |
| 2626. |
Which one of the following is now being commercially produced by biotechnological Procedures |
| A. | Nicotine |
| B. | Morphine |
| C. | quinine |
| D. | Insulin |
| Answer» E. | |
| 2627. |
A technology which has found immense use in solving cases of disputed parentage is |
| A. | DNA finger printing |
| B. | Polymerase chain reaction |
| C. | Recombinant DNA technology |
| D. | Monoclonal antibody production |
| Answer» B. Polymerase chain reaction | |
| 2628. |
Production of a human protein in bacteria genetic engineering is possible because |
| A. | bacterial cell can carry out the RNA splicing reactions |
| B. | the human chromosome can replicate in bacterial cell |
| C. | the mechanism of gene regulation is identical in human and bacteria |
| D. | The genetic code is universal |
| Answer» D. The genetic code is universal | |
| 2629. |
Name of the drug used in cancer treatment produced by using biotechnology is ..... |
| A. | HGH |
| B. | TSH |
| C. | Insulin |
| D. | Interfern |
| Answer» D. Interfern | |
| 2630. |
What does Bt stand For the Popular crop Bt Cotton ? |
| A. | Best |
| B. | Best type |
| C. | Biotechnology |
| D. | Bacilius tomentosta |
| Answer» F. | |
| 2631. |
Widely used tool in genetic engineering of crop plants is ____ (AIEEE 2004) |
| A. | protoplast fusion |
| B. | Transposon |
| C. | Micro injection |
| D. | Agrobacterium mediation |
| Answer» C. Micro injection | |
| 2632. |
c DNA Probes are copied from messenger RNA molecule with the help of __ |
| A. | Restriction enzyme |
| B. | Reverse transcriptase |
| C. | DNA Polymerase |
| D. | Adenosine deaminase |
| Answer» E. | |
| 2633. |
Which of the following option shows correctly matched pairs for colum I and colum II |
| A. | P-iv, Q-iii, R-ii, S-i |
| B. | P-iii, Q-iv, R-ii, S-i |
| C. | P-ii, Q-iii, R-i, S-iv |
| D. | P-ii, Q-iv, R-iii, S-i |
| Answer» C. P-ii, Q-iii, R-i, S-iv | |
| 2634. |
The total number of nitrogenous bases in human genome is estimated to be about |
| A. | 35 million |
| B. | 3.1 million |
| C. | 3.5 million |
| D. | 3.5 thousand |
| Answer» E. | |
| 2635. |
Agarose extracted From weeds finds use in ______ (A.I.PMT 2011) |
| A. | spectrophoto metry |
| B. | Tissue culture |
| C. | Gel electrophoresis |
| D. | PCR |
| Answer» C. Gel electrophoresis | |
| 2636. |
The nuclease enzyme which begins its attack from Free end of a polynucleotide is |
| A. | Exonuclease |
| B. | Kinase |
| C. | Polymerase |
| D. | Endonuclease |
| Answer» B. Kinase | |
| 2637. |
Which option is proper for event of callus cultre ? |
| A. | Explantcell divisioncallusadding cytokinintransform from cell to meristmatic tissue. |
| B. | Explantcalluscell divisionadding cytokinintransform from cell to merismatic tissue. |
| C. | Callusadding cytokinincell divisiontransform from cell to meristmatic tissueexplant. |
| D. | Cell divisionadding cytokinincallusexplanttransform from cell to meristmatic tissue. |
| Answer» B. Explantcalluscell divisionadding cytokinintransform from cell to merismatic tissue. | |
| 2638. |
Through plant tissue cultare growing the cell, tissue and organ in culture medium is called........ |
| A. | Toti potency |
| B. | Stored food |
| C. | Inter specific hybridization |
| D. | Dormancy |
| Answer» B. Stored food | |
| 2639. |
Which type of plant is produce by plant tissue cultare. |
| A. | Interspecific. |
| B. | Dormant species. |
| C. | Genetically modified species. |
| D. | Hybrid species. |
| Answer» D. Hybrid species. | |
| 2640. |
Match the column I & II |
| A. | P - iii, Q - v, R - i, S - ii |
| B. | P - iii, Q - iv, R - v, S - i |
| C. | P - ii, Q - i, R - v, S - iv |
| D. | P - v, Q - iv, R - i, S - ii |
| Answer» B. P - iii, Q - iv, R - v, S - i | |
| 2641. |
Which one group is the subunit of nucleotide? |
| A. | Pentose sugar, nitrogen |
| B. | Purina, pyrimidine, phosphorus |
| C. | Nitrogen base, sugar |
| D. | pentose sugar, Nitrogen base , phosphoric acid |
| Answer» E. | |
| 2642. |
Which one is not a polymer? |
| A. | ATP |
| B. | Hemoglobin |
| C. | Nucleotide |
| D. | Enzyme |
| Answer» D. Enzyme | |
| 2643. |
DNA is localized in which cell organelle? |
| A. | Vacuoles |
| B. | Lysosomes |
| C. | Golgi apparatus |
| D. | Nucleus, mitochondria, chloroplast |
| Answer» E. | |
| 2644. |
Nuclein separated in to which components? |
| A. | Protein + chromosome |
| B. | Protein + Nucleic acid |
| C. | Nucleic acid + nitrogen base |
| D. | Nuceicoside + Nucleotide |
| Answer» C. Nucleic acid + nitrogen base | |
| 2645. |
What is Ribonucleoside? |
| A. | Ribose + Nucleic acid |
| B. | Ribose + Nitrogen base |
| C. | Ribose + Phosphate |
| D. | Ribose + Adenine |
| Answer» C. Ribose + Phosphate | |
| 2646. |
What ‘A’ and ‘B’ indicates in the given diagram? |
| A. | A= CH2OH, B= OH |
| B. | A= CH2OH, B= H |
| C. | A= CH, B= OH |
| D. | CH2, B= H |
| Answer» E. | |
| 2647. |
The following diagram represents the nitrogenous bases of nucleic acid Molecules Identify the correct combination: |
| A. | A= Guanine , B= Uracil |
| B. | A= Adenine , B= Thymine |
| C. | A= Cytosine , B= Adenine |
| D. | A= thymine , B= Guanine |
| Answer» B. A= Adenine , B= Thymine | |
| 2648. |
What does the following diagram show? |
| A. | Quaternary structure of protein |
| B. | polypeptide chain |
| C. | Molecule structure of protein |
| D. | Secondary structure of protein |
| Answer» C. Molecule structure of protein | |
| 2649. |
Ribonucleoside formed from ribonucleotide while:- |
| A. | It made from sugar |
| B. | It made from nitrogen base |
| C. | It made from phosphate |
| D. | a, b, c all above |
| Answer» D. a, b, c all above | |
| 2650. |
Nucleic acids were discovered by whom? |
| A. | Crick |
| B. | Wilkinson |
| C. | meischer |
| D. | Watson |
| Answer» D. Watson | |