Description : A cosmid is a (A) Large bacterial plasmid (B) Viral plasmid (C) Hybrid of plasmid and phage (D) Yeast plasmid
Last Answer : Answer : C
Description : Which of the following may be used as a cloning vector? (A) Prokaryotic plasmid(B) Lambda phage (C) Cosmid (D) All of these
Last Answer : Answer : D
Description : Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes? (a) Retrovirus (b) Ti plasmid (c) λ phage (d) pBR322
Last Answer : (a) Retrovirus
Description : Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes ? (1) Retrovirus (2) Ti plasmid (3) phage (4) pBR 322
Last Answer : (1) Retrovirus
Description : DNA or RNA segment tagged with a radioactive molecule is called (a) vector (b) probe (c) clone (d) plasmid.
Last Answer : (b) probe
Description : An organism that transmits disease from one individual to another is called - (1) Hybrid (2) Fragment (3) Vector (4) Clone
Last Answer : (3) Vector
Description : An organism that transmits disease from one individual to another is called (1) Hybrid (2) Fragment (3) Vector (4) Clone
Last Answer : Vector
Description : Yeast artificial chromosome can be used to amplify DNA sequences of the size (A) Upto 10 kb (B) Upto 45 kb (C) Upto 100 kb (D) Upto 1,000 kb
Description : Which one of the following vectors is used to replace the defective gene in gene therapy? (a) Adenovirus (b) Cosmid (c) Ri plasmid (d) Ti plasmid
Last Answer : (a) Adenovirus
Description : DNA fragments upto 45 kilobases in size can be cloned in (A) Bacterial plasmids (B) Lambda phage (C) Cosmids (D) Yeast artificial chromosomes
Description : Differences between a bacterial chromosome and a plasmid? -Biology
Last Answer : answer:
Description : How is the recombinant plasmid different from the bacterial chromosome?
Last Answer : Need answer
Description : In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (i-iv) in this regard and select the correct option about which one or more of these ... ii) and (iv) (b) (i) only (c) (i) and (iii) (d) (ii) and (iv)
Last Answer : (d) (ii) and (iv)
Description : When composite transposons are formed A- a small deletion occurs in the transposase gene of an IS element B- a small deletion occurs in the transposase gene of an IS element and plasmid is ... a plasmid D- two IS elements integrate into a chromosome with only a small distance separating them
Last Answer : two IS elements integrate into a chromosome with only a small distance separating them
Description : Plasmid vector in DNA recombinant technology means
Last Answer : Plasmid vector in DNA recombinant technology means A. a virus that transfers gene to bacteria B. ... D. any fragment of DNA carrying desirable gene
Description : Plasmid has been used as vector because (a) it is circular DNA which have capacity to join to eukaryotic DNA (b) it can move between prokaryotic and eukaryotic cells (c) both ends show replication (d) it has antibiotic resistance gene.
Last Answer : (a) it is circular DNA which have capacity to join to eukaryotic DNA
Description : The linking of antibiotic resistance gene with the plasmid vector became possible with (a) DNA polymerase (b) exonucleases (c) DNA ligase (d) endonucleases.
Last Answer : (c) DNA ligase
Description : Which of the following defines an open reading frame (ORF)? A.A sequence of genome in bacteriophage B.The sequence of a complete genome C.A plasmid vector used in genome sequencing D.A possible gene predicted by DNA sequencing
Last Answer : D.A possible gene predicted by DNA sequencing
Description : Which of the following defines an open reading frame (ORF)? A- .A sequence of genome in bacteriophage B- The sequence of a complete genome C- A plasmid vector used in genome sequencing D- .A possible gene predicted by DNA sequencing
Last Answer : .A possible gene predicted by DNA sequencing
Description : 7. In a recombinant DNA technology a plasmid vector must be cleaved by a) the same enzyme that leaves the donor gene b) modified DNA ligase c) a heated alkaline solution d) four separate enzymes
Last Answer : a) the same enzyme that leaves the donor gene
Description : The process of replication in plasmid DNA, other than initiation, is controlled by (a) mitochondrial gene (b) plasmid gene (c) bacterial gene (d) none of these.
Last Answer : c) bacterial gene
Description : The Ti plasmid, is often used for making transgenic plants. The plasmid is found in (a) Azotobacter (b) Rhizobium of the roots of leguminous plants (c) Agrobacterium (d) Yeast as a 2 mm plasmid.
Last Answer : (c) Agrobacterium
Description : Specialized transduction is carried out by a. Virulent Phages That Have A Lytic Cycle Of Infection. b. Temperate Phages Carrying A Entire Bacterial Chromosome. c. Temperate Phages That Carry A Segment Of Host Dna. d. Virulent Phages That Swap Dna Segments.
Last Answer : c. Temperate Phages That Carry A Segment Of Host Dna.
Description : During the process of lysogeny _____. a. Phage DNA Integrates Into The Bacterial Chromosome. b. A Bacterium Acquires DNA From The External Environment. c. Competent Cells Receive Plasmids. d. New Phage Particles Are Assembled In The Host Bacterium.
Last Answer : a. Phage DNA Integrates Into The Bacterial Chromosome.
Description : Which type of plasmid can exist with or without being integrated into the host's chromosome? A- Medisome B- Lisosome C- Lysogen D- Episome
Last Answer : D- Episome
Description : Antibiotic resistance gene in a plasmid cloning vector -Biology
Description : Difference between plasmid and vector. -Biology
Description : Difference between plasmid and expression vector. -Biology
Description : A single strand of nucleic acid tagged with a radioactive molecule is called (a) vector (b) selectable marker (c) plasmid (d) probe
Last Answer : d) probe.
Description : A gene whose expression helps to identify transformed cell is known as (a) vector (b) plasmid (c) structural gene (d) selectable marker.
Last Answer : (d) selectable marker.
Description : A gene whose expression helps to identify transformed cell is known as : (1) Vector (2) Plasmid (3) Structural gene (4) Selectable marker
Last Answer : 4) Selectable marker
Description : 71. A single strand of nucleic acid tagged with a radioactive molecule is called (1) Probe (2) Vector (3) Selectable marker (4) Plasmid
Last Answer : Probe
Description : The most important mechanism of bacterial resistance to an aminoglycoside antibiotic is (a) Plasmid mediated acquisition of aminoglycoside conjugating enzyme (b) Mutational acquisition of aminoglycoside ... affinity of ribosomal protein for the antibiotic (d) Mutational loss of porin channels
Last Answer : Ans: A
Description : The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is (a) Decreased permeability into the bacterial cell (b) Acquisition of a plasmid encoded ... bacterial ribosome for chloramphenicol (d) Switching over from ribosomal to mitochondrial protein synthesis
Last Answer : Ans: B
Description : The most important mechanism of bacterial resistance to an aminoglycoside antibiotic is: A. Plasmid mediated acquisition of aminoglycoside conjugating enzyme B. Mutational acquisition of aminoglycoside ... affinity of ribosomal protein for the antibiotic D. Mutational loss of porin channels
Last Answer : A. Plasmid mediated acquisition of aminoglycoside conjugating enzyme
Description : The most important mechanism by which gram negative bacilli acquire chloramphenicol resistance is: A. Decreased permeability into the bacterial cell B. Acquisition of a plasmid encoded ... the bacterial ribosome for chloramphenicol D. Switching over from ribosomal to mitochondrial protein synthesi
Last Answer : B. Acquisition of a plasmid encoded for chloramphenicol acetyl transferas
Description : What is cosmid?
Last Answer : Genetically engineered vector containing phage and plasmid genetic elements which accepts inserts of larger length (average of 45 kb) than phage (15 kb) or plasmid (1-10 kb) derived vectors. The ... the vector DNA which is then amplified and maintained as a giant plasmid in the host cell.
Description : The fruit when kept is open, tastes bitter after 2 hours because of (A) Loss of water from juice (B) Decreased concentration of fructose in juice (C) Fermentation by yeast (D) Contamination by bacterial enzymes
Description : Human insulins are obtained by the following sources/methods except: A. Cadaver pancreas B. Proinsulin recombinant bacterial C. Precursor yeast recombinant D. Enzyme modification of pork insulin
Last Answer : . Cadaver pancreas
Description : All the following statements about restriction fragment length polymorphism are true except (A) It results from mutations in restriction sites (B) Mutations in restriction sites can occur in coding or non- ... It is inherited in Mendelian fashion (D) It can be used to diagnose any genetic disease
Description : In sticky ends produced by restriction endonucleases (A) The 2 strands of DNA are joined to each other (B) The DNA strands stick to the restriction endonuclease (C) The ends of a double stranded fragment are overlapping (D) The ends of a double stranded fragment are non overlapping
Description : Okazaki fragment is related to (A) DNA synthesis (B) Protein synthesis (C) mRNA formation (D) tRNA formation
Last Answer : Answer : A
Description : PCR and restriction fragment length polymorphism are the methods for (a) study of enzymes (b) genetic transformation (c) DNA sequencing (d) genetic fingerprinting.
Last Answer : (d) genetic fingerprinting.
Description : What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis ? (a) The smaller the fragment size, the farther it moves. (b) Positively charged fragments move to farther end. ... charged fragments do not move. (d) The larger the fragment size, the farther it moves.
Last Answer : (a) The smaller the fragment size, the farther it moves
Description : Given below are four statements pertaining to separation of DNA fragments using gel electrophoresis. Identify the incorrect statements. (i) DNA is negatively charged molecule and so it is loaded on gel towards the anode terminal. (ii) DNA ... (iii) (c) (ii), (iii) and (iv) (d) (i), (ii) and (iv)
Last Answer : (d) (i), (ii) and (iv)
Description : A transgenic organism is one that _____. a. Has Donated A DNA Fragment To Another Organism. b. Contains A Gene From Another Organism. c. Contains Useless "Genetic Debris." d. Has Exchanged Gene Loci Within The Organism.
Last Answer : b. Contains A Gene From Another Organism.
Description : Consider the following four measures (A-D) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common. (A) Spray with Bordeaux mixture (B) Control of the insect vector of the disease pathogen (C) ... (D) (b) (A) and (D) (c) (B) and (C) (d) (A) and (B)
Last Answer : (b) (A) and (D)
Description : Lambda phage can be used to clone DNA fragments of the size (A) Upto 3 kilobases (B) Upto 20 kilobases (C) Upto 45 kilobases (D) Upto 1,000 kilobases
Last Answer : Answer : B
Description : Which of the following statement describes plasmids? A- Another name for a protoplast B- A complex membrane structure that covers the chromosome of bacteria Small, circular DNA molecules that can exist independently of chromosomes commonly C- found in bacteria D- None of the above
Last Answer : found in bacteria