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Genetic Engineering
Questions about the manipulation of an organisms genes in order to alter the morphological or chemical traits of the organism.
1,707 Questions
What is the difference between xx and xy chromosomes?
First of all, you're mistaken if you asked yourself this question: XX is the female sex chromosome combination, and XY is male.
It's important to realise that this is the case in humans, but not in all animals. Other animals, for example insects, have different mechanisms for sex determination.
In humans, a fertilised egg cell will divide a few times. Then each cell will turn off all but one of its X chromosomes (the phrasing is because in rare cases a fertilized egg can end up with three or more X chromosomes). This is possible and necessary because one X is sufficient to produce the proteins encoded on it, hence two active X would result in twice the amounts needed.
If you now wondered whether an embryo can also survive and grow to adulthood with only one X and no other sex chromosomes, you are correct. This is called monosomy X and causes a condition known as Turner syndrome.
Any human with only X chromosomes will be female. The Y chromosome, which is much smaller than the X chromosome, carries some additional genes whose influence will set off several mechanisms which ultimately lead to the development as a male instead. A Y chromosome alone cannot sustain life as it does not contain many of the vital genes which are located on the X chromosome.
Who should have access to personal genetic information and how will it be used?
As genetic testing becomes more available both in terms of quality and affordability of test, more people will choose to be tested for genetic conditions and predictive risk assessment.
How is trigger finger diagnosed?
Inflammations of the tendons causes trigger fingers. Usually alternating ice and heat, resting the digit and ibuprophen helps the situation.
How does gene cloning differ from animal cloning?
Cloning - Is copying an animals DNA, it is the exact animal replica. Selectively breeding - Breeding animals with the features and characteristics that the breeder wants.
What is the function of CL buffer in DNA extraction?
In a DNA extraction, the purpose of a buffer is to solubilize DNA as well as RNA. Because of this, it prevents the DNA for degrading.
Do chromosomes contain the genetic information of the bacterial cell?
Yes, chromosomes (the DNA) contain the genetic blueprints for all cells.
How is a glowing tobacco plant created by inserting a firefly gene into the DNA of a tobacco plant?
Through the process of Genetic Engineering
Where in the promoter do transcription factors bind?
Completely Specific Transcription Factors bind to equally specific Dna Sequences that are located and found within The Promoter [Dna] Sequence.
Up-Stream from the promoter sequence are the enhancer sequences; Down-Stream is the Operator Sequence - followed by the encoded information.
Is the only possible source of new genetic material?
mutations
recombination/crossing over in mammals
What portion of a sperm that contains the genetic information from the biological father?
It is important to note that a sperm cell carries half the number of the genetic cell.
Examples of genetic engineering?
Medical applications
- Diagnosis of hereditary disorders, such as Huntington's disease and certain forms of breast cancer
- Research into the causes of other disorders. Investigation of new drug targets
- Prevention through new vaccines or conduct based on genetic tests
- New forms of treatment using new drugs or gene therapy
- Positive identification of individuals, paternity tests or forensic science
Nutritional and agricultural applications
- Improving desired properties (improving storage or shelf-life) and modifying composition to better nutritional value or for technical applications (oil, starch)
- Resistance to disease and insects in order to improve cost efficiency and reduce the use of agricultural chemicals
- Adaptation to locations with marginal soil conditions in order to stabilize production, particularly in developing countries
Industrial applications
- Resource-saving production of chemicals
- Production of drugs and food additives using genetically modified organisms
- Degradable plastics, detergents, enzymes, etc.
- Use of specific microbes for soil and wastewater treatment (grey genetic engineering)
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What are the applications of genetic engineering in biotechnology?
Genetic Engineering techniques alter the chemistry of genetic material (DNA or RNA), to introduce these into host organisms and thus change the phenotype of host organisms. It has application in medicine, research, industry and agriculture and can be used in wide range of plant, animals and micro-organisms.
- In medicine, genetic engineering has been used to mass produce insulin, human growth hormones.
- In research, organisms are genetically engineered to discover the function of certain genes.
Find list of biotech companies in Bangalore?
The following website contain all the list of biotech companies in bangalore. Its being regularly updated also
http://biotechradar.blogspot.com/2008/11/list-of-biotech-and-bioinformatics.html
What are the genetic traits of Vincent and Anton in the movie Gattaca?
Vincent Freeman is conceived and born without the aid of this technology. His parents regret this, and his younger brother, Anton, is conceived with the aid of genetic engineering. Growing up, their father clearly favors Anton, the stronger, taller and more perfect son.
Why the genetic engineering is ethical?
Religion has been one of the biggest obstructions to scientific development and success. Medical science has faced some of the most disgusting attacks from religious fanatics hiding behind facades of morality and righteousness.
What is the most common symptom of a genetic disorder?
The most common symptom of a genetic disorder is the abnormality in chromosome structure or number. People with a genetic disorder have a distinct physical or facial feature like abnormally shaped ears.
a new gene which codes for the protein that can repair defective genes is introduced.
Who first correctly described the molecular structure of DNA?
Sir James Watson and Sir Francis Crick first described the molecular structure of DNA correctly. They not only mentioned the fact that DNA is a helical structure, but also described how the constituting molecules are arranged in the helix. The base-pairing, sugar-phosphate backbone were first described by Watson and Crick.
Is human genetic engineering bad?
Opinions vary. Every new technology creates both new opportunities and new dangers. The consequences of genetic engineering are still unfolding, and the science of genetic engineering is quite young. Ask me again in another 50 years.
Have potatoes been produced by selective breeding?
Yes. They are i think. I don;t really know. Suck it!
American botanist Luther Burbank developed the disease-resistant Burbank potato through selective breeding, which was later exported to Ireland to help fight potato blight and other diseases.
~HoshiRakuen
Not yet, although it is more than likely possible.
Research into this has legal and ethical considerations, not the least of which is the creation of test zygotes and fetuses that would be required, many of which would be unsuccessful.
The process if in vitro fertilization can also create excess fertilized eggs, and implantation or termination occurs at a very low stage of development. But there are still moral and religious objections if these eggs are destroyed or allowed to die.
How many symbols are in the genetic code?
there are 64 codon for diffrent amino acids in human being and three amino acid codon for a specific amino acid eg AUG stand for methionin amino acids ADENINE URACIL GUANIN
Where can cloning be carried out?
In grain production. (Farming).
Additional: The cloning of plants by vegetative propagation (taking cuttings) is the most common form of cloning today and will certainly continue to be so.
What genetic material carries information about the cell?
Messenger RNA carries genetic information in a cell. It takes it from the DNA out of the nucleus and into the cytoplasm.
