0
PCR can be used to identify a bacterium because A.The DNA primers are specific B. DNA polymerase will replicate DNA. C. DNA can be electrophoresed. D. All cells have DNA. E. None of the above.?
Wiki User
∙ 10y ago
The right answer is E. None of the above because the true answer is "The RNA Primer is specific."
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Which best describes the purpose of the polymerase chain reaction (PCR)?
Polymerase Chain Reaction is widely used in many areas to identify DNA and detect infectious organisms or genetic variations, including the viruses that cause AIDS, hepatitis, and tuberculosis, detection of mutations in human genes, and numerous other tasks.
Why use a streak plate to grow a bacterium?
You do a streak plate in order to get isolated colonies. If you inoculate into a slant, you have less surface area to work and less chance of getting isolated colonies. In broth, you'll definitely get growth but you won't know WHAT is growing. You go back into each quadrant (a little) with your loop in order to "dilute" the bacteria and get colonies. Quadrant 1 is pretty think (like a smear on the plate) but by the time you get to Quadrants 3 and 4, you should see more defined colonies and not just a film of bacteria.
The basic function of activated T cells is to identify?
Is to identify in blood or lymph. Or is to identify body cells that have not been invaded by pathogens. Or, to identify chemical mediators of immunity. Or, to identify pathogens in interstitial fluid. Or, to identify the activated macrophages.
How do you identify an oak tree?
Identify the oak leaf
What is to identify?
Identify is to put things out in a simpalur way.
How are molecular biologists identify genes in sequences of DNA?
by rna polymerase chain reaction
Identify three infectious disease caused by virus and three caused by bacterium?
measles, influenza(flu0, HIV, AIDS, Adenovirus Infections.
Which best describes the purpose of the polymerase chain reaction (PCR)?
Polymerase Chain Reaction is widely used in many areas to identify DNA and detect infectious organisms or genetic variations, including the viruses that cause AIDS, hepatitis, and tuberculosis, detection of mutations in human genes, and numerous other tasks.
Which best describes the purpose of the polymerase chain reaction (PCR)?
Polymerase Chain Reaction is widely used in many areas to identify DNA and detect infectious organisms or genetic variations, including the viruses that cause AIDS, hepatitis, and tuberculosis, detection of mutations in human genes, and numerous other tasks.
How do you identify dead microorganism?
we can identify dead microorganisms by they nucleic acid (heritage matter). Nucleic acids are in all viable cells that can maintain even in dead cells. for detection of nucleic acid in a specimen, we must degrade the cell's membrane , extract the nucleic acid, and then detect them by a method such as Polymerase Chain Reaction (PCR).
How you can detect pathogen?
Pathogenic bacteria are those which cause disease. You can identify a link between a bacterium and a disease by isolating the bacterium in a statistically significant number of occurances of the disease. Proving the link is causative is more difficult, but could be done with a cohort study or in vivo experimentation. Probably the most well documented case in recent years is the proving of Helicobacter pylori as a causative agent of stomach ulcers.
How do you identify Serratia liquifaciens?
Serratia liquifaciens are a rod-shaped, motile bacterium which can live in environments completely devoid of oxygen. Some strains are harmless; others can cause disease. We don't know a whole lot about it but lots of research is currently underway.
What is the name of the paper used to dry slides after gram staining?
Gram staining is used to identify whether a bacterium is gram positive or gram negative. Slides can be dried using filter paper or tissues. The technique is based on the reaction of stain that happens with the membrane of bacteria.
Is the repair of damaged DNA best viewed as a race between an endonuclease and DNA ligase Helicase Methylase DNA polymerase or Primase?
It's not really a race at all as the processes cooperate with each other, but there are two possible analogies from your options.The first, and the most applicable to living cells, is a race between polymerase and methylase. However, this is only the case in prokaryotes (bacteria etc) and not in eukaryotes (humans, animals, plants etc) because the latter don't methylate their DNA. The reason for this "race" is that the prokaryotic repair enzymes use hemi methylated sites (only methylated on one side) to identify which of the two bases in a mismatched base pair is incorrect (it will be the newest unmethylated one). If the methylase gets there before the repair enzymes do, then there will be no way to tell and repair is limited to homologous recombination, which can't always take place as it relies on a homologous chromosome (an exact copy) being present. But in a living cell, methylase always lags behind polymerase and the repair enzymes to avoid this happening.The second possible "race" is between the endonuclease and the polymerase, since polymerase replicates DNA and endonuclease (in this case) repairs it. If the polymerase replicates DNA before damage repair, you get cell division with a permanent mutation in one cell, which is why they could be considered to "race". But realistically, if polymerase comes across any DNA damage, it will usually stop and wait for the repair to take place anyway, and actively recruits the necessary enzymes to do so.
What is a gene of interest?
You can identify a gene from a DNA sequences by finding specific patterns and making predictions based on them. Biological computer programs can pinpoint patterns and help aid gene prediction.
Why use a streak plate to grow a bacterium?
You do a streak plate in order to get isolated colonies. If you inoculate into a slant, you have less surface area to work and less chance of getting isolated colonies. In broth, you'll definitely get growth but you won't know WHAT is growing. You go back into each quadrant (a little) with your loop in order to "dilute" the bacteria and get colonies. Quadrant 1 is pretty think (like a smear on the plate) but by the time you get to Quadrants 3 and 4, you should see more defined colonies and not just a film of bacteria.
Why is the gene coding for ribosomal RNA or rRNA used for establishing phylogenetic relationships?
rRNA genes are actually conserved among species, they do not largely vary for each different strain or the subtypes of the same species! hence we are using rRNA sequences to identify the bacterium and place them on phylogenetic tree accordingly.
