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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

Identify Application of biology in genetic engineering?

Genetic engineering is the artificial transplantation of Heriditary material[genes] of an organism. Genetic engineering is one of the most important field of biology.It has produced such varieties of plants and animals which can fulfill the requirements of food for 1 arge population. Genetic engineering is very important in the diagnosing of heriditary diseases e.g=Haemophilia, colour blindness e.t.c

What is ment by genetic mutation?

A mutation is any change to a strand of DNA which is passed on to an organism's offspring.

DNA mutations are caused usually by chemical interactions or radiation (natural and manmade), and most are harmless.

The only ones which cause serious defects (that I know of) are changes to sperm or egg cells, stem cells (which might ultimately be responsible for the DNA and development of an entire region of your anatomy) and changes which cause cancer.

If a fetus or embryo is exposed to intense radiation, they will be at high-risk for harmful genetic mutations because their body is still developing, whereas an adult will be relatively immune since most of the time if a strand of DNA in a cell is damaged the cell just dies and is replaced.

Why genetic engineering superior to selective breeding?

Genetic modification (GM) is designed to produce desired characteristics in a plant or animal by splicing a gene that has the desired characteristic directly into the genetic code of that plant or animal. It is much faster than selective breeding

What are the Genetic codes contain?

The genetic code is carried in the DNA on the chromosomes.

What are the disadvantages of Southern blotting?

it is a labours process

it is timeconsuming process

it required more amount of dna require 3microliter dna per sampel

it is costly

Disadvantages of genetic testing?

1- Even if an abnormal gene is present, there is no proven way to eliminate cancer risk.2- You may test positive for a gene that indicates a genetic disorder but never develop it.

3- You will face emotional distress once you find out the results. This can also affect your family and friends emotionally.

4- Negative test results may provide a false sense of security, because you may think you have no chance of getting breast cancer, which is not true.

How does meiosis create genetic diversity?

Disregarding coding errors and mutations etc.

You start with 46 chromosomes - half go to each gamete. Each one has a choice. So you have 2 to the 23 power possibilities.

that is more than 8,000,000 ... all different.

How does crossing over explain genetic variability?

Normally the genes on a chromosome are inherited as a complete set. If you get that chromosome you get all the genes on it. In the process of crossing over similar sections of DNA are swapped from one chromosome to another. This means that different pairings of genes will be inherited together going forward.

What is indirect elisa?

In the Indirect ELISA ,

  1. An antigen is added to the microtiter plate well and the antigen attaches to the walls of the microtiter plate.
  2. After rinsing to remove excess antigen, the serum suspected of containing the antibodies is added.
  3. Enzyme-linked antibody capable of reacting with the constant region of other antibodies is the added, followed by addition of the colorless substrate. Development of color indicates the presence of the antibody being identified.

What leads to genetic variation in a population?

Random mutations in an organism's DNA after reproduction.what lead to variations

Is sociopath a genetic behavior?

Yes, that's part of it. But there are other factors. Some of these are not yet known, but it is known that starting in infancy, some babies begin to develop neurologically in a very abnormal manner. First off, whereas most people have specific areas in one or the other hemisphere of the brain that handle various tasks, the sociopath has them scattered randomly in both hemispheres, so that memory and information are broken into small pieces; this is why their speech is often wildly contradictory. And even worse, the areas of the cerebral cortex that normally handle emotional information do not work at all, for reasons unknown, so they never develop at all, remaining as they were in infancy. Other areas process this information but in such a different way that it is incomprehensible to people who are not sociopaths, and vice-versa. The actual structure of the brain can be lopsided. Overall, it is believed that the condition is congenital but that extremely intensive therapy of an entirely different sort than usual and starting in childhood can at least keep the sociopath from causing massive damage to other people, and possibly even alleviate some of his/her own misery.

What causes a genetic disorder?

the genes are passed from both mother and father to the fetus, this is the cause of some genetic disorders, nothing can be done about this because all genes are hereditary, good along with the bad.

Is huntingtons a chromosomal or a genetic disease?

Hungtington's disease is a dominant mutation in the gene that codes for the protein 'Huntington'

It only affects a single gene, the remainder of the chromosome is unaffected and therefore it is not a chromosomal abnormality

What are five types of genetic engineering?

Answer

The three types of genetic engineering are:

  1. Applied genetic engineering which includes cloning and transgenesis.
  2. Chemical genetic engineering which includes genes mapping, gene interaction, and genes coding
  3. Analytical genetic engineering which includes computer mapping.

Do you think the cloning of humans should be legal?

Cloning of animals is legal, but cloning of humans is considered to be a taboo and is not legal.

What are some advantages and disadvantages of mining engineering?

disadvantages of mining is that the chemicals used to extract the minerals will go down lakes which well put a big impact on the environment

UPDATE

This answer needs a slight correction. Chemicals are NOT used to extract minerals during mining in the United States. In some instances in South America, chemicals are used to "cluster" ores together, but this practice is not used in the United States. "Pollution of streams" that occurs in the United States is usually from the natural acidity of the geologic formations. Mining companies in the United States are required by federal law to take steps to decrease the drainage of acidic strata, so water pollution is not as prevalent as believed.

How do you get rid of love handles if you are doing your ab workouts religiously?

Get Rid of Love Handles
  • Love handles are fat deposits. You get rid of fat through diet and cardiovascular exercise to create a caloric deficit (you burn more calories than you take in). You cannot spot reduce. Getting rid of love handles is just a matter of reducing your total body fat. Cut out high carbohydrate foods and eat a healthy diet. You will be taking in fewer calories this way, and the added calories you burn through exercise will further create a caloric deficit.
  • The American Heart Association recommends 60-90 minutes of cardiovascular exercise a day, every day, for those seeking fat loss. (At 50-80% of your maximum heart rate). Everyone, normal weight or not, should be exercising for at LEAST 30 minutes a day, most days of the week. By exercising, not only do you burn more calories while you exercise but also you will be burning more calories even when you stop, as your metabolism remains elevated.
  • In the end, it is a matter of having a constant caloric deficit. It is possible to lose weight through only exercise or only diet, but combining daily exercise and a healthy diet is the most effective way to safely maintain an ideal weight. You will need to maintain these good habits for life in order to keep the weight off.
  • I have found that using a cross trainer, also knows as an elliptical trainer, shifts mine. It is one of those machines that make you look like your cross-country skiing. It really works because you have to do lots of twisting from the waist.
  • I am an athlete; I play basketball and field hockey. The only way to get rid of love handles is to go on a diet combined with cardiovascular exercise. Such cardio vascular exercises would be brisk walking, bike riding, treadmill, stair master, and even certain dance classes. To tone your body as well so that you will not have any flab, you can do weight training, Pilates, yoga, and crunches. Keep in mind that any exercise you do has to be done correctly, you get what you put in to it. You can also go running or jogging, everyone hates it but it works. If you are too overweight to run or jog, brisk walking for fat loss works very well.
  • In my experience, I used Suzanne Sommers regimen and I noticed (and others noticed) a slimming of the waist, bottom, and thighs. I recommend this for others.
  • I am a runner, long-distance cross-country and for a track team. I still deal with the annoying problem of unattractive love handles. I tried exercising and came out with a toned stomach region/6-pack from all the lower waist workouts, but my love handles were still visible. Being not only an athlete but also a runner, it was embarrassing for me to have them. I was determined to get rid of love handles. I found out that the only way to lose them is (the last thing I wanted to do) diet! I had a hard time starting out, but eventually I swapped fatty/sweet foods for healthy, weight-smart foods. Not only did my love handles seem to vanish but also I became more self-confident and my whole body felt better after I ate. Starting out is hard, and it may seem like you fail before you even try, but stick with it and you will get it.
  • I have lost 40 pounds in a matter of months. I have tried everything. There are no shortcuts. You have to eat right (get rid of the high carbohydrate food, junk food, and sugary foods, and eat lean meats and low carb veggies). Exercise is also the key. Think about it: we are talking love handles here. How much muscle do you think you are actually going to build up under them? We are not talking biceps or quads; we are talking about abdominals and obliques. Exercise AND diet are both key elements in any fat loss program. You cannot have one without the other and expect amazing (and lasting) results. Your exercise regime should consist of both cardio and weight training programs. No, you do not have to bulk up like Arnold to lose the weight. I am talking about weight training not bodybuilding. Weight training has been proven very effective.
  • I do lots of dance, soccer and swimming. For me to get rid of love handles I do not have to diet. I just do not eat that extra bag of chips, or that pop, and I take out the sugary stuff. The rest is all exercise! Over the summer, I trained for swimming so much that my love handles disappeared and in addition, I got that toned curve that happens when they disappear. For those who say weight training exercise builds muscle and increases metabolism, that is true. Moreover, cardio, my friends, will take off fat like there is no tomorrow. However, you cannot just walk for 5 minutes, you have to get your heart rate up. You also have to watch what you eat. Cut out the high carb junk food. Be sensible.
  • Losing those love handles will happen eventually with any weight loss. To speed up the weight loss in this problem area you should practice these exercises. They will increase muscle mass and reduce the "love handles". 1.Hold a 5 five pound weight in each had and rotate side to side for 30 min each day. 2. Eat well balanced healthy diet no sweets. 3. Work your obliques. 4. Lots of cardiovascular activities like running once every three days, or brisk walking every day will help.
  • When I started working-out, I decided that cardio was the best way to achieve a smaller waist. I think I achieved love handles through years of abusive drinking and bad diet. I found that strictly cardio was not the answer for me. Even long cardio sprees before lifting were not an answer. Though, I managed to lose fat everywhere else, I could not get rid of love handles. The best answer I can contribute, and I have seen the most progress from, is a combination of everything already said. Kick all the high carb junk! Slurp down a protein shake instead of Taco Bell. Eat lots of low carb veggies, and only essential low carb fruits, not too much though. Do cardio and weight training. You might also care to try jumping-jacks.
  • As annoying as this may be, it is all about calories. Keep a journal of EVERYTHING you eat (even gum, or that one tic tac). Figure out the number of calories consumed. Then figure out how many calories you used that day (there are plenty of charts/calculators online to help determine what certain exercises burn). Subtract intake from expenditure for the day. If you have a negative number, congrats, you are losing weight and fat. Also, do not weigh yourself every day. Depending on how well hydrated (water weight) you are at any given time significantly effects your weight. You cannot spot reduce. You need a healthy diet, with a good amount of cardio workout and weight training. No shortcuts I'm afraid.
  • I had love handles and they sagged over my jeans. I counted calories. Consuming under 2,000 calories a day will help you lose them. I quit drinking soda, fast food, and refined (processed carbohydrates) and I dropped the weight off fast! That's all I did and I lost them within 2 weeks. Not including exercise.
  • I suggest calisthenics. I have a very slim frame but put on fat around my middle like a spare tyre and around my thighs. I bought a video about it and it is the most unbelievable thing I've seen. Along with eating properly, I chose to do the stomach and leg exercises that appear in this tape. The exercises are very simple, and can even be done by people with bad backs. They work the muscle deep, deep within and I swear you see results in a short time. I recommend Callanetics exercises. For some people the exercises work at tightening up the stomach muscles and erasing love handles.
  • Another alternative, although drastically more costly, and potentially more dangerous - is liposuction. It can be very effective for those persons working on fat in a stubborn area. In addition, of notable mention for getting rid of love handles are site targeting body wraps. As cellulite, fatty, areas are often prone to accumulating toxins. I got liposuction over 3 years ago and I have yet to see my love handles reappear and its not as if I'm an exercise freak.
  • Cardio exercise, such as brisk walking, and weight training are very beneficial in reducing body fat. By increasing your muscle mass, your body will burn more calories 24 hours per day and not just when you are exercising. Cardio exercise will increase the amount of calories your body uses both during and immediately after exercise. To learn about how to lose love handles or stomach fat correct eating, cardio and weight training, see the related page links, further down this page, listed under Related Questions.

How does genetic engineering affect a cell's characteristics?

Allows scientists to induce a cell to make needed chemicals.

What are the disadvantages of the ELISA test?

two advantages are you don't need to use radioactive substances and it five accurate results

highly sensitive and specific

not needing radioisotopes (radioactive substances) or a costly radiation counter (a radiation-counting apparatus)

What is the scientific name for a human cell?

The scienific name for cheek is Prezwaregalopigas or Stratified (stacked) Squamous (flat) Epithelium (external covering cells)

Does sperm transport genetic material?

Sperm contributes one half of the genetic material,the egg supplies the other half.This is the main reason why sexual reproduction is used by most organisms. It creates diversity in species that make it more resilient to changing conditions.

What is jellyfish genes used for?

Jellyfish genes are used within genetically engineering certain foods. The jellyfish genes are added to wheat to make the wheat glow when it needs water.

A bacterium has one that holds its genetic material?

yes. it has only one chromosome that holds its genetic material, however they may also have plasmids that contain genetic material

What are the sources of genetic variation?

Mutation is the ultimate source of all genetic diversity. Viruses that infect bacteria are bacteriophages. A mutation within a gene that will insert a premature stop codon in mRNA would result in a shortened polypeptide chain.