synthesis of DNA DNA Replication
DNA has largely replaced finger-prints for indentifying people. Or at least confirmed what finger-prints have led authorities to. Service people in the military today, all must now submit their DNA to the medical corps, so that in the event they become a casualty, they can be identified. DNA science has probably eliminated future "Unknown Soldiers." For detailed definitions of DNA, see site: DNA
Yes, a gene is a complex length of DNA that is in our body. A gene is a length of DNA that codes for a living life form. Genes are found on chromosomes which are in the body nucleus.
No, DNA was first isolated by the Swiss physician. Also there were no African Americans involved in any subsequent work on DNA leading to the understanding of it structure.
All of it.The cell cycle describes the state of the DNA in the cell.
stabilization of phenol against oxidation
It is an antioxidant.
roll of Na CL in DNA extraction
Glycerol is sometimes added to DNA extraction buffers to increase the density of the solution, allowing DNA to precipitate more efficiently. It also helps stabilize DNA during extraction procedures by preventing degradation from nucleases.
To give the solution buffering capacity.
beta- merceptoethanol denatures the protein by breaking the sulphur bridges in it.
Mercapotoethanol is used as an antioxidant. Especially for polyphenolics which become insoluble when oxidised and tend to precipitate with the DNA. Sodium sulphite (1.2 g/L) does the same thing without the stink.
Calcium acetate is used in DNA extraction to neutralize the negative charge of DNA molecules, allowing them to aggregate and precipitate out of solution. This helps to separate DNA from other cellular components during the extraction process, making it easier to isolate pure DNA for downstream applications.
70% ethanol is used in DNA extraction to wash and precipitate DNA from a sample. Ethanol helps to remove impurities and salts, allowing DNA to clump together and be easily separated from the rest of the sample. It also helps to preserve the integrity of the DNA during the extraction process.
2-Mercaptoethanol is often included in extraction buffers designed for plant DNA extraction, because it is a strong reducing agent which can remove tannins and other polyphenols often present in the crude plant extract. It may also help to denature proteins by breaking disulphide bonds between cysteine residues.
DNAzol is a reagent used in DNA extraction to lyse cells by disrupting the cell membrane and nucleus. It helps release DNA from the cells and proteins, allowing for subsequent separation and purification of the DNA. DNAzol also helps protect the DNA from degradation during the extraction process.
Incubation in DNA extraction helps break down the cell and nuclear membranes, releasing the DNA. The incubation step usually involves a lysis buffer that contains detergents and enzymes to disrupt the cellular structure and separate the DNA from other cellular components. This allows for the extraction and purification of the DNA for downstream applications.