Table of Contents
Isolate dna from available plant material such as green pea spinach seeds papaya
DNA can be isolated from a variety of plant materials, including green peas, spinach seeds, and papaya. The first step is to grind the plant material into a fine powder. Next, add a buffer and alcohol to the powder, and mix well. The mixture is then placed in a centrifuge to separate the DNA from the plant material. The DNA can be purified and sequenced using standard techniques.
Isolation of DNA: Practical Procedure
1. Add 1 ml of DNA extraction buffer to the sample.
2. Vortex the sample and add 1 ml of phenol.
3. Vortex the sample and add 1 ml of chloroform.
4. Vortex the sample and centrifuge at maximum speed for 15 minutes.
5. Remove the top layer (aqueous phase) and add 0.5 ml of isopropanol.
6. Vortex the sample and centrifuge at maximum speed for 15 minutes.
7. Remove the top layer (aqueous phase) and add 0.5 ml of ethanol.
8. Vortex the sample and centrifuge at maximum speed for 15 minutes.
9. Remove the top layer (aqueous phase) and dry the sample in a centrifuge tube.
10. Resuspend the DNA in 50 μl of water.
Recombinant DNA Technology Process
Recombinant DNA technology is a process used to combine genetic material from different sources, creating a new gene. This technology is used to produce genetically modified organisms (GMOs) and to study genes. Recombinant DNA technology is based on the discovery of restriction enzymes, which are enzymes that cut DNA at specific sequences. These enzymes were first discovered in the 1970s.
The first step in recombinant DNA technology is to isolate the gene of interest. This can be done using a technique called PCR (polymerase chain reaction). PCR is a method used to amplify DNA sequences. This step is necessary because the gene of interest is often present in very small quantities.
The second step is to cut the gene of interest into smaller pieces using a restriction enzyme. This is necessary because the gene needs to be inserted into a vector, which is a molecule that can carry the gene into a cell.
The third step is to insert the gene into a vector. This can be done using a technique called cloning. Cloning is a method used to create copies of a gene.
The fourth step is to insert the vector into a cell. This can be done using a technique called transformation. Transformation is a method used to insert DNA into a cell.
The fifth step is to select cells that have been transformed with the vector. This can be done using a technique called selection. Selection is a method used to identify cells that have been transformed with a gene
Process of Recombinant DNA Technology
The process of recombinant DNA technology (rDNA) begins with the isolation of DNA from a donor organism. This DNA is then cut into small pieces using enzymes called restriction enzymes. These enzymes recognize specific sequences of DNA and cut the molecule at those points.
The small pieces of DNA are then mixed with DNA from another organism. This second organism contains a gene that is desired to be inserted into the first organism.
The mixture of DNA is then placed into a test tube and heated to a high temperature. This causes the two pieces of DNA to fuse together. The newly formed DNA is then called a recombinant DNA molecule.
The recombinant DNA molecule is then inserted into a host organism. The host organism can be a bacteria, a yeast, or a plant. The recombinant DNA molecule is inserted into the host organism using a process called transformation.
The host organism is then allowed to grow. The recombinant DNA molecule is replicated as the host organism grows. The recombinant DNA molecule is passed from one generation of cells to the next.
The recombinant DNA molecule can then be isolated from the host organism and studied. The gene that was inserted into the host organism can be analyzed to determine its function.
Fragmentation of DNA
The fragmentation of DNA can refer to two different things: the fragmentation of chromosomal DNA, or the fragmentation of mitochondrial DNA.
Chromosomal DNA fragmentation refers to the breaking up of chromosomes into smaller pieces. This can be caused by various things, such as aging, environmental stress, or exposure to radiation. When chromosomal DNA is fragmented, it can lead to cell death, or to the cells becoming cancerous.
Mitochondrial DNA fragmentation refers to the breaking up of mitochondrial DNA into smaller pieces. This can be caused by various things, such as aging, environmental stress, or exposure to radiation. When mitochondrial DNA is fragmented, it can lead to cell death, or to the cells becoming cancerous.