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 : A selectable marker is used to (a) help in eliminating the non-transformants, so that the transformants can be regenerated (b) identify the gene for a desired trait in an alien organism (c) ... in a specific crop (d) mark a gene on a chromosome for isolation using restriction enzyme.
Last Answer : (a) help in eliminating the non-transformants, so that the transformants can be regenerated
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 : 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 sequence that controls the copy number of the linked DNA in the vector, is termed (a) selectable marker (b) Ori site (c) palindromic sequence (d) recognition site.
Last Answer : (b) Ori site
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 : Which one is a true statement regarding DNA polymerase used in PCR? (a) It is used to ligate introduced DNA in recipient cells. (b) It serves as a selectable marker. (c) It is isolated from a virus. (d) It remains active at high temperature.
Last Answer : (d) It remains active at high temperature.
Description : Which one is a true statement regarding DNA polymerase used in PCR ? (1) It remains active at hight temperature (2) It is used to ligate introduced DNA in recipient cells (3) It serves as a selectable marker (4) It is isolated from a virus
Last Answer : (2) It is used to ligate introduced DNA in recipient cells
Description : Antibiotic resistance gene in a plasmid cloning vector -Biology
Last Answer : answer:
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 : Difference between plasmid and expression vector. -Biology
Description : The given figure is the diagrammatic representation of the E. coli vector pBR322. Which one of the given options correctly identifies its certain component(s)? Bam H1 Sal 1 Pvu II rop ... reduced osmotic pressure (c) HindIII, EcoRI - selectable markers (d) ampR, tetR-antibiotic resistance genes
Last Answer : (d) ampR, tetR–antibiotic resistance genes
Description : The regulatory i gene of lac operon (A) Is inhibited by lacotse (B) Is inhibited by its own product, the repressor protein (C) Forms a regulatory protein which increases the expression of downstream structural genes (D) Is constitutively expressed
Last Answer : Answer : D
Description : The promoter on an expression vector used to overproduce proteins in bacteria is A.a bacterial promoter B.expressed both in bacteria and mammalian cells C.not a regulated promoter D.the natural promoter of the gene being cloned
Last Answer : A.a bacterial promoter
Description : Difference between plasmid and vector. -Biology
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 : Which of the following may be used as a cloning vector? (A) Prokaryotic plasmid(B) Lambda phage (C) Cosmid (D) All of these
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 : Which vector can clone only a small fragment of DNA? (a) Bacterial artificial chromosome (b) Yeast artificial chromosome (c) Plasmid (d) Cosmid
Last Answer : (c) Plasmid
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 : Antibiotic resistance gene in plasmid -Biology
Description : The plasmid pBR322 has (A) Ampicillin resistance gene (B) Tetracycline resistance gene (C) Both (A) and (B) (D) None of these
Last Answer : Answer : C
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 : 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 : n bacteria, plasmid is (a) extra chromosomal material (b) main DNA (c) non functional DNA (d) repetitive gene.
Last Answer : (a) extra chromosomal material
Description : In bacteria, plasmid is (a) extra chromosomal material (b) main DNA (c) non functional DNA (d) repetitive gene.
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 : Unidirectional tandem gene arrays are significant in ________ a. Increase in recombinant gene product with increasing plasmid number. b. Increase in recombinant gene product without increasing plasmid ... increasing plasmid numbers. d. Decrease in strong promotor with increase in plasmid number
Last Answer : b. Increase in recombinant gene product without increasing plasmid number.
Description : In pKO1 plasmid, galactose kinase gene is a reporter gene which lacks ___________ gene. a. Initiation codon b. Promoter c. Activator d. Termination
Last Answer : b. Promoter
Description : All of the following may be used as expression vectors except (A) Plasmid (B) Bacteriophage (C) Baculovirus (D) E. coli
Description : DNA present in a structural gene that does not seem to have a specific coding function is known as what?
Last Answer : ANSWER: INTRON
Description : Assertion:- Cell wall is not only a structural component but also show dynamic role for cell. Reason:- Cell wall helps in cell to cell interaction and
Last Answer : Assertion:- Cell wall is not only a structural component but also show dynamic role for cell. Reason:- ... . D. If both Assertion & Reason are false.
Description : What is antisense technology? (a) When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene (b) RNA polymerase producing DNA (c) A cell displaying a foreign antigen used for synthesis of antigens (d) Production of somaclonal variants in tissue cultures
Last Answer : (a) When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene
Description : The final step of gene expression is protein synthesis, which is also known as A- replication B- translation C- transcription D- none of these
Last Answer : translation
Description : What is the furthest year into the future selectable as an Iphone contacts actual birthday?
Last Answer : Can’t believe I just rolled it past 11500 and its still going! It goes back as far as 1 too!!!
Description : Component 'C' in section 'I' shown in the illustration represent ____________. EL-0093 A. a selectable holding coil arrangement B. a 'fuse blown' indicator circuit C. 'reset' and 'trouble' lamps D. a handset with switch and voice elements
Last Answer : Answer: D
Description : The diagram shown in the illustration represents a _________. EL-0058 A. dual speed, 2-winding motor controller B. navigation running light circuit C. single phase, 2-motor selectable starter D. common fluorescent lighting circuit
Last Answer : Answer: B
Description : In genetic engineering, the antibiotics are used (a) as selectable markers (b) to select healthy vectors (c) as sequences from where replication starts (d) to keep the cultures free of infection.
Last Answer : (a) as selectable markers
Description : The cutting of DNA at specific locations became possible with the discovery of (a) selectable markers (b) ligases (c) restriction enzymes (d) probes.
Last Answer : (c) restriction enzymes
Description : What is structural gene? -Biology
Description : What is the function of a structural gene? -Biology
Description : Difference between a structural gene and a regulatory gene. -Biology
Description : Function of structural gene. -Biology
Description : The equivalent of a structural gene is
Last Answer : The equivalent of a structural gene is A. Operon B. Recon C. Muton D. Cistron