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Are proteins more or less resistant to acid hydrolysis that are nucleic acids why?
Proteins are generally more resistant to acid hydrolysis compared to nucleic acids. This is because proteins have a more complex and stable structure due to their folded three-dimensional conformation, which makes them less susceptible to being broken down by acid. Nucleic acids, on the other hand, have a simpler structure and are more susceptible to breaking under acidic conditions.
Why formamide is used as a denaturant in dgge?
Formamide is used as a denaturant in Denaturing Gradient Gel Electrophoresis (DGGE) because it destabilizes the DNA double helix, leading to the separation of DNA fragments based on their sequence. By introducing formamide into the gel, different DNA fragments can be separated based on their melting temperature, allowing for analysis of genetic diversity and structure within a sample.
Why not use antibacterial or antiviral drugs to destroy prions?
Prions are not susceptible to antibacterial or antiviral drugs because they are not living organisms like bacteria or viruses. Prions are misfolded proteins that cause other proteins to misfold, leading to disease. They are resistant to most traditional forms of disinfection or drug treatment.
What are the main features of Prions?
Prions are misfolded proteins that can induce other proteins to also misfold, leading to protein aggregates in the brain. They are associated with neurodegenerative diseases such as Creutzfeldt-Jakob disease and mad cow disease. Prions are highly resistant to conventional sterilization methods and can be transmitted through contaminated meat or other tissues.
What does the prion do?
Prions are misfolded proteins that can induce abnormal folding of normal proteins in the brain, leading to neurodegenerative diseases. They are resistant to degradation and can propagate by converting normal proteins into the misfolded form. This process results in the accumulation of toxic aggregates, causing neuronal damage and ultimately leading to diseases such as Creutzfeldt-Jakob disease and mad cow disease. Prions challenge conventional understanding of infectious agents, as they lack nucleic acids.
Are proteins less resistant or more resistant to acid hydrolysis that are nucleic acids?
they are more because they are
What is pyridine used for?
Pyridine is commonly used as a solvent in chemical reactions and as a precursor in the synthesis of pharmaceuticals, dyes, and insecticides. It is also used as a denaturant for ethyl alcohol, and as a reagent in various organic reactions.
What are eubacteria with protective walls that are resistant to heat and cold.?
Thermophiles are eubacteria that are resistant to heat, while psychrophiles are eubacteria that are resistant to cold. These bacteria have protective cell walls made of unique proteins and lipids that help them survive extreme temperatures.
Are proteins more or less resistant to acid hydrolysis that are nucleic acids why?
Proteins are generally more resistant to acid hydrolysis compared to nucleic acids. This is because proteins have a more complex and stable structure due to their folded three-dimensional conformation, which makes them less susceptible to being broken down by acid. Nucleic acids, on the other hand, have a simpler structure and are more susceptible to breaking under acidic conditions.
Why formamide is used as a denaturant in dgge?
Formamide is used as a denaturant in Denaturing Gradient Gel Electrophoresis (DGGE) because it destabilizes the DNA double helix, leading to the separation of DNA fragments based on their sequence. By introducing formamide into the gel, different DNA fragments can be separated based on their melting temperature, allowing for analysis of genetic diversity and structure within a sample.
Are transgenic crop plants registered for use in the US?
Yes. Most are herbicide resistant (soybean, canola) or produce insecticidal proteins (BT corn, cotton).
Which microorganism is least resistant to antimicrobial agents?
Prions are considered the least resistant microorganisms to antimicrobial agents because they lack the structures targeted by most antibiotics or disinfectants. Prions are composed mainly of misfolded proteins and are not easily killed by standard antimicrobial treatments.
Why are proteins more resistant to acid hydrolysis?
Proteins are more resistant to acid hydrolysis than are nucleic acids. Because proteins contain long chains of the amino acids which are connected to each other. -OH and -NH2 group of amino acids are strongly stabilised by hydrogen bonding. Therefore they do not get hydrolysed as number of intermolecular and intramolecular hydrogen bonds are formed.
What is wood alcohol for?
Wood alșcohol isa very old name for methanol -CH3OH. Some applications areȘ- solvent- denaturant for ethanol- antifreezing agent- fuel
Why not use antibacterial or antiviral drugs to destroy prions?
Prions are not susceptible to antibacterial or antiviral drugs because they are not living organisms like bacteria or viruses. Prions are misfolded proteins that cause other proteins to misfold, leading to disease. They are resistant to most traditional forms of disinfection or drug treatment.
How do disulfide bonds contribute to the structural integrity of keratin proteins?
Disulfide bonds in keratin proteins help to strengthen and stabilize the protein structure by forming cross-links between different protein chains. This contributes to the overall structural integrity of keratin, making it more resistant to breaking or damage.
Why is disinfectant resistant to disinfectant?
beause they contain some proteins called porins that show little permeability for hydrophilic solutes. these porins vary/change their structure to escape from antibacterial pressure or regulation.
