What genetic material to all living bacteria contain?
It is the same as human, ie.DNA. In fact, bacteria are the ancestors of all the species,and so they named as prokaryotes. They trascribe RNA and synthesise proteins like us.
What is the ethical problem with pre - implantation genetic diagnosis?
the only arguments against it are as follows:
1. it can be dangerous to certain life on the planet to genetically engineer plants. example: in the 90's a corn crop was grown from genetically engineered corn and a butterfly species went extinct.
2. some say that it is wrong to "play god"
3. it can be considered animal cruelty.
the advantages of are as follows:
1. the world's largest source of electricity could be harnessed by simply splicing an electric eel's zwitterion genes together with something like a sea sponge.
2. the world could be a lot better fed if only chicken nuggets grew on trees.
3. you could have a dog that fits in a shot glass.
What are some benefits for genetic engineering in crop plants?
Hi, my answer might be beneficial to this question:
"It may take many generations of breeding for a trait to become homozygous and consistently expressed in the population. Genetic engineering is a faster and more reliable method for increasing the frequency of a specific allele in a population."
I received this answer from page 341 in my Glencoe Biology textbook.
Good luck on your journey to learning!
Yes!! Genetic engineering is defined as the direct manipulation of an organism's genes. Though I do believe there should be some limitations on what we do with genetic engineering, it can cure so many genetic disorders and illnesses. Keep in mind that nearly EVERY human disorder has an underlying genetic cause. For instance, people with Sick Cell Anemia have a point mutation in the gene that codes for hemoglobin. This mutation results in abnormal function of the hemoglobin in their blood cells, which causes the cells to turn sickle shaped when they are deoxygenated. It shortens life expectancy to mid 40s, and can cause very painful and potentially lethal complications. However, with genetic engineering we could insert a functioning copy of the gene into a patient's bone marrow cells, and they would be able to produce normal blood cells. In a few months after all their defective sickle blood cells died off, they would be free of the disease. However, I think use of genetic engineering to change a human's appearance, intelligence, or behavior is too much.
Why are Plasmids and viruses used as vectors?
Transformation of bacteria plasmids are one of the easiest ways to demonstrate and test hypotheses about genetic transformations in laboratory conditions due to the ease of performing the procedure and relative quickness of obtaining results. DNA can be taken into the bacterium by subjecting the a competent cell to heat shock which makes the plasma membrane more fluid. (A bacterial cell may need to be treated with a chemical, ie) CaCl2 in E. coli, in order to become competent, or have enhanced ability for DNA uptake). The foreign DNA, or plasmid, will insert itself into the DNA of the bacterium. Bacterial cells have relatively few genes, compared to other organisms. Bacteria replicate frequently and will therefore express a phenotype in a reasonable amount of time. Only some competent cells will become transformed. This factor is expressed as transformation efficiency, which is defined by (# of transformants obtained)/(# of total cells).
Is there genetic engineering for cri du chat syndrome?
what research is currently being done on cri-du-chat
Role of mgcl2 in competent cell preparation?
The addition of calcium chloride to a cell suspension promotes the binding of plasmid DNA to Lipopolysaccharide. Positively charged calcium ions attract both the negatively charged DNA backboneand the negatively charged groups in the Lipopolysaccharide inner core. The plasmid DNA can then pass into the cell upon heat shock, where cells are cooled to a low temperature (+4 degrees Celsius) and then heated to a high temperature (+42 degrees Celsius) for a short time.
Which named part in a animal cell contains genetic information?
DNA is found in the nucleus of the cell, which contains chromosomes, genes are found on chromosomes
What are the two main sources of genetic variation and which of them is more common?
The two main sources of genetic variation are sexual reproduction, and mutation. Sexual reproduction is more common.
What can cause genetic variation?
genes are kept in chromosomes, there is this thing called meiosis which is when the chromosomes/genes get split in half, one from both parents that way it equals the normal amount of genes later. the genes have tons of ways to mix and match around while getting split apart and then ending up in the same place.
An act of fertilization in which genetic information is transferred between cells is called?
One of the steps during fertilization is called conjunction. During conjunction, genetic information is transferred between cells to arm the cell with the information necessary to replicate..
How the genetic information is stored in a cell?
Gene stores information as a sequence of nucleotides, which codes for the sequence of amino acids that determine the formation of a specific polypeptide or protein.
How does a herpes virus get energy?
Like other viruses, herpes is an obligate intracellular parasite. It gets its energy from the host cell's ATP.
Why might parents decide to have genetic testing?
Parents might decide to have genetic testing to determine if either or both of them carry certain genetic traits that could be passed on to their offspring. Some genetic traits will lead to severe birth defects or problematic diseases that could severely impact the quality of their children's lives.
If they are indeed carriers of certain traits, they may choose to avoid having children or choose adoption as an alternative. In this way, they can eliminate their particular genetic line and avoid passing the trait on to the next generation.
Have there ever been any genetic experiments in medicine with positive results?
Try the recombinant ligand epoetin alfa that helps me with my anemia, or just try insulin therapy for humans. This insulin therapy means we no longer have to rely on insulin from horses, for instance, but now we avoid the harmful reactions that therapy visited on some people.
Yes, there have been genetic experiments in medicine with positive results.
Are you for or against the genetic engineering?
This is a very open ended question; some people would tell you absolutely not, and that its an abomination.
Others, such as myself, believe it is the way of the future.
Its pretty much something you'd need to do reseach into and form your own opinion. There are strong reasons to do it, but there are also risks and moral issues involved.
This is for Apex Learning The answer is
Differentiation
What is the principle of DNA isolation using phenol chloroform method?
Phenol chloroform extraction is the oldest and still widely followed method for the isolation and extraction of DNA from plant and animal cells. The phenol, chloroform (and also isoamyl alchohol) are added in a specific ratio of 25: 24:1.
Phenol: Phenol dissolves the organic impurities, like proteins etc.
chloroform: Provides density to phenol so that it settles below water during phase separation.
Isoamylalchohol: Used to prevent phosgene from reaction of chloroform with air.
The Phenol:Chloroform:Isoamylalchohol (PCI) solution is added to the cell extract after removal removal of debris. After proper mixing, cetrifugation is done to separate the phases. Two phases are formed: The upper, the aqueous phase that contains DNA, the lower phase, that phenol phase, that contains organic impurities. Thus two phases are separated by a very clearly defined boundary of coagulated proteins.
The aqueous phase is precipitated and then the DNA could be pelleted after rounds of purifications.