What are some disadvantages of DNA technology?

Answer 1

• Most food manafacturers are unable (or unwilling to provide information on whether or not their products contain GM ingredients. This means you rarely know what you are eating.
• GM crops can contaminate other crops simply by pollen being blown by wind from one field to another.
• World starvation has more to do with wealth distribution rather than the inadequate production of foods.
• Sometimes GM crops have allergenic effects.
• Loss of nutritional value.
• Reduction of the efficiency of antibiotics.
• New viruses could evolve from the mass production of GM crops.
• The more that gene technology is used, the worse the environment will become.
• Pests may develop resistance to GM crops that have been designed to kill them.
• Humans do not have the right to genetically alter nature for their own convienience and profit.
• GM crops produce religious complications.
• Vegetarians and Vegans may find it offensive to put animal genes into plants.
• GM crops may cause harm to the wealth and welfare of animals.
• Some countries will not be able to afford GM foods.
• GM crops may produce ecological side effects (Monarch butterfiles).
• No assurances of public liability for Farmers of GM crops.

Answer 2

• Cost per test for may exceed traditional testing methods such as microscopy.
• Most rapid tests have limited shelf lives that place increased demands on procurement and distribution systems.
• They are mainly qualitative, producing only "yes/no" answers that may yield less information than the existing laboratory-based quantitative tests.
• They require subjective interpretation, which may result in reader variation in results.
• In many cases, rapid tests are less sensitive or less accurate compared to existing reference-level laboratory tests.
• Are not amenable for high throughput testing.
• Requires extensive and robust quality control and quality assurance mechanisms.

Answer 3

What are disadvantages of Recombinant DNA Technology?

Recombinant DNA is DNA that have had insertion points made by enzymes called DNA ligases and restrction enzymes. An example of a disadvantage of recombinant DNA technology is the huge risks associated with genetically modified foods that could have unpredictable effects on our health and the environment. ChaCha on!

Answer 4

As with all genetic engineering, the major concern is the unpredictability of long-term consequences.

The technologies available for genetic engineering are not yet developed enough to modify DNA of a living organism specifically and reliably. Usually, some genetic changes are introduced unintentionally and these can cause severe problems for the organism.

Let us assume the technology was perfected and human DNA could be reliably altered for living human beings. There are still two major problems:

First, genetically engineered changes are always set for the entire lifetime of an organism. The changes are introduced just after an egg is fertilised, so that all cells resulting from the egg's cell division will also carry the modifications. Once the egg has divided, genetic modification becomes much more difficult or even impossible. This means that any unexpected consequences of a modification cannot be corrected and the organism then has to live with those consequences.

The second problem is the concern of what would be done with this technology. The intentions behind its develoment are almost always to improve medicine for treating genetic diseases, but the ability to modify DNA could be abused for unethical purposes once it is available.

Answer 5

Some disadvantages of DNA recombinant technology include:

- huge consumer resistance to Genetically modified food (i.e. many people do not like food that has been 'tampered with' genetically

- Genetic variety reduced (e.g. in crops, the amount of alleles is drastically reduced)

- Potential for interbreeding between wild and transgenic organisms

- Ethical considerations: e.g. animal rights/welfare, collecting DNA samples

Answer 6

Borders on the issue of ethics, Unexpected or undetected mutations can take place, It's costly, Introducing genetically modified genes may have an irreversible effect with unknown consequences.

Answer 7

genetic engineering can stop the growth of DNA which is needed to produce more genes to pass on to offspring.

Answer 8

list some disadvantages of cloning techniques