5. 4. Plasmids in bacterial cells are
(a) extra-chromosomal DNA, which cannot replicate
(b) extra-chromosomal DNA, which can . self-replicate
(c) extra DNA associated with the genome
(d) extra DNA, associated with the genome, but cannot replicate.

1 Answer

Answer :

(b) extra-chromosomal DNA, which can . self-replicate

Related questions

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 : 4. . Plasmids in bacterial cells are (a) extra-chromosomal DNA, which cannot replicate (b) extra-chromosomal DNA, which can . self-replicate (c) extra DNA associated with the genome (d) extra DNA, associated with the genome, but cannot replicate.

Last Answer : (a) extra-chromosomal DNA, which cannot replicate

Description : DNA fragments upto 45 kilobases in size can be cloned in (A) Bacterial plasmids (B) Lambda phage (C) Cosmids (D) Yeast artificial chromosomes

Last Answer : Answer : C

Description : Plasmids a. Replicate with the bacterial chromosome. b. Contain essential growth information. c. May contain antibiotic resistance genes. d. Are as large as the bacterial chromosome.

Last Answer : c. May contain antibiotic resistance genes.

Description : What are plasmids? -Biology

Last Answer : a genetic structure in a cell that can replicate independently of the chromosomes, typically a small circular DNA strand in the cytoplasm of a bacterium or protozoan. Plasmids are much used in the laboratory manipulation of genes.

Description : What is the role of plasmids in bacteria? -Biology

Last Answer : A plasmid is a small, circular, double-stranded DNA molecule that is distinct from a cell's chromosomal DNA. Plasmids naturally exist in bacterial cells, and they also occur in some eukaryotes. ... bacteria divide rapidly, they can be used as factories to copy DNA fragments in large quantities.

Description : Why are plasmids good cloning vectors? -Biology

Last Answer : answer:

Description : What are plasmids? -Biology

Last Answer : answer:

Description : What are the two groups of plasmids? -Biology

Last Answer : answer:

Description : What are conjugative plasmids? -Biology

Last Answer : answer:

Description : What are non-conjugative plasmids? -Biology

Last Answer : answer:

Description : What are plasmids? -Biology

Last Answer : answer:

Description : What are the two groups of plasmids? -Biology

Last Answer : answer:

Description : What are conjugative plasmids? -Biology

Last Answer : answer:

Description : What are non-conjugative plasmids? -Biology

Last Answer : answer:

Description : What are the filaments called that help some bacteria stick to surface and exchange plasmids through conjugation?

Last Answer : Pili are filaments that help bacteria stick to the surface andexchange plasmid through conjugation.

Description : “Antagonism “ is seen in a. Lag phase b. Plasmids c. Log phase d. None of these

Last Answer : Ans: D

Description : What are plasmids? What is the importance of plasmids for the recombinant DNA technology?

Last Answer : Plasmids are circular fragments of DNA that are accessories to the main bacterial DNA. Plasmids are important for genetic engineering because genes from other organisms are inserted into them to ... utile proteins for humans on an industrial scale. Bacterial Cell Review - Image Diversity: plasmid

Description : Maximum number of bases in plasmids discovered so far (a) 50 kilo base (b) 500 kilo base (c) 5000 kilo base (d) 5 kilo base.

Last Answer : (b) 500 kilo base

Description : Which of the following is not a feature of the plasmids? (a) Transferable (b) Single-stranded (c) Independent replication (d) Circular structure

Last Answer : (b) Single-stranded

Description : Which of the following organelles is related with genetic engineering? (a) Mitochondria (b) Plasmids (c) Golgi bodies (d) Lysosomes

Last Answer : (b) Plasmids

Description : Which of the following are used in gene cloning? (a) Nucleoids (b) Lomasomes (c) Mesosomes (d) Plasmids

Last Answer : (d) Plasmids

Description : Without restriction endonucleases, it would be very difficult to a. Force Plasmids into Bacteria. b. Chemically Open Dna Molecules. c. Replicate Dna In A Recombinant Cell. d. Bring About Mutations In Bacteria.

Last Answer : b. Chemically Open Dna Molecules.

Description : are single-stranded DNA molecules that can recognize and bind to a distinctive nucLeotide sequence of a pathogen. a. Prophages b. Plasmids c. Cloning vectors d. DNA probes

Last Answer : d. DNA probes

Description : Which one of the following statements is true? a. Plasmids are circular molecules of RNA. b. RNA replicates by a conservative method of replication. c. Deletions or insertions of a ... reading frameshift during translation. d. Okazaki fragments are removed from a RNA before translation occurs.

Last Answer : c. Deletions or insertions of a nucleotide in a gene will cause a reading frameshift during translation.

Description : Transposable genetic elements (transposons) a. Were First Discovered By Watson And Crick. b. Are Smaller Than Insertion Sequences. c. Are Examples Of Plasmids. d. May Have Information For Antibiotic Resistance.

Last Answer : d. May Have Information For Antibiotic Resistance.

Description : Plasmids are a. Another Name for Transposons. b. Accessory Genetic Information. c. Domains within A Chromosome. d. Daughter Chromosomes.

Last Answer : b. Accessory Genetic Information.

Description : F factor plasmids play a major role in A.conjugation B.replication C.transduction D.trasnscription

Last Answer : A.conjugation

Description : F factor plasmids play a major role in A.conjugation B.replication C.transduction D.trasnscription

Last Answer : conjugation

Description : The plasmids can be eliminated from a cell by the process known as A- curing B- breaking C- fixing D- expulsion

Last Answer : curing

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

Description : Which of the following plamids do not possess information for self transfer to another cell? A- Cryptic plasmids B- Conjugative plasmids C- Non-conjugative plasmids D- None of these

Last Answer : Non-conjugative plasmids

Description : The term used for plasmids possessing both RTF and r determinants is A- non self-transmissible plasmids B- non conjugative plasmids C- conjugative plasmids D- none of the above

Last Answer : conjugative plasmids

Description : Cell membranes are composed of: a) proteins b) plasmids c) nucleopores d) lysosomes

Last Answer : ANSWER: A -- PROTEINS

Description : What is the difference between Gram-positive and Gram-negative bacterial cells? Name the technique used for differentiating such bacterial cells.

Last Answer : What is the difference between Gram-positive and Gram-negative bacterial cells? Name the technique used for differentiating such bacterial cells.

Description : Identify the different shapes of bacterial cells shown in the given figures: Different shapes of bacterial cells

Last Answer : Identify the different shapes of bacterial cells shown in the given figures:

Description : What specific type of bacteria reproduces through binary fission every hour. If there are three bacteria cells to begin with how many bacterial cells will there be in five hours?

Last Answer : 32

Description : In the process of transcription in bacterial cells (A) Initiation requires rho protein (B) RNA polymerase incorporates methylated bases in correct sequence (C) Both the sigma unit and core ... RNA polymerase are required for accurate promotor site binding (D) Primase is necessary for initiation

Last Answer : Answer : C

Description : The following statement(s) is/are true concerning host defense mechanisms to intraabdominal infection. a. Bacterial clearance can occur via translymphatic absorption b. Phagocytic activity and bacterial killing can ... may be walled off but are seldom sealed by the omentum and other mobile viscera

Last Answer : Answer: a, b, c The introduction of microorganisms into the normally sterile peritoneal environment invoke several potent specialized host antimicrobial defense mechanisms. Bacterial clearance, ... the contaminated enteric contents walled off, preventing continued soilage of the peritoneal cavity

Description : Platelets have a wide array of functions in inflammation. Which of the following are among these? a. Synthesis and release of vasoactive eicosanoids b. Release of chemotactic factors c. ... coating of bacterial and tumor cells d. Increase of vascular permeability e. Phagocytosis of bacteria

Last Answer : Answer: a, b, c, d Platelets are anucleated cells derived from megakaryocytes in the bone marrow. Their central role in hemostasis is well known. Platelets possess a wide ... primitive precursor inflammatory cell. Platelets serve primarily as an amplifier or modulator of the inflammatory response

Description : Concerning the presence of nucleus what is the difference between animal and bacterial cells ?

Last Answer : Animal cells (cells of living beings of the kingdom Animalia) have an interior membrane that delimits a cell nucleus and thus they are eukaryotic cells; in these cells the genetic material is located ... so they are prokaryotic cells and their genetic material is found dispersed in the cytosol.

Description : Bacterial cells do not have - (1) Cell wall (2) Plasma membrane (3) Ribosome (4) Mitochondria

Last Answer : (4) Mitochondria Explanation: Unlike cells of animals and other eukaryotes, bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles. Bacteria are prokaiyotes, which ... are cells that don't possess membrane-bound organelles. Mitochondria are membrane-bound organelles.

Description : Proto-oncogenes are: B A. DNA sequences in cells that are oncogenes themselves B. Cellular copies of genes that were first found in oncogenic retroviruses C. DNA viral sequences that are known to infect human cells D. Bacterial DNA counterparts

Last Answer : Cellular copies of genes that were first found in oncogenic retroviruses

Description : Polymorphonuclear neutrophil granulocytes A A. are important cells in bacterial infections B. play a role in inflammation by releasing histamine C. are important cells in neoplastic conditions D. play an important role in viral infections

Last Answer : are important cells in bacterial infections

Description : Cellular totipotency is demonstrated by (a) only gymnosperm cells (b) all plant cells (c) all eukaryotic cells (d) only bacterial cells.

Last Answer : (b) all plant cells

Description : Asthma may be attributed to (a) inflammation of the trachea (b) accumulation of fluid in the lungs (c) bacterial infection of the lungs (d) allergic reaction of the mast cells in the lungs.

Last Answer : (d) allergic reaction of the mast cells in the lungs.

Description : Select the wrong statement. (a) Bacterial cell wall is made up of peptidoglycan. (b) Pili and fimbriae are mainly involved in motility of bacterial cells. (c) Cyanobacteria lack flagellated cells. (d) Mycoplasma is a wall-less microorganism.

Last Answer : (b) Pili and fimbriae are mainly involved in motility of bacterial cells.

Description : Which one of the following is NOT true of exotoxins? a. They are proteins. b. They are part of cell wall structure. c. They are released from live bacterial cells. d. They trigger antibody production.

Last Answer : d. They trigger antibody production.

Description : A healthy person can be diagnosed as having a infection with the multiplication of bacterial cells in the blood. a. Primary; bacteremia b. Primary; vermeil c. Primary; septicemia d. Secondary; parasitemia

Last Answer : c. Primary; septicemia

Description : The skin is a. Dominated By Gram-Negative Bacterial Cells. b. Free Of Bacterial Cells. c. Without A Microbiota. d. Dominated By Gram-Positive Bacterial Cells.

Last Answer : d. Dominated By Gram-Positive Bacterial Cells.