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Genetic Engineering – The Canadian Encyclopedia

Posted: Published on October 4th, 2016

Interspecies gene transfer occurs naturally; interspecies hybrids produced by sexual means can lead to new species with genetic components of both pre-existing species. Interspecies hybridization played an important role in the development of domesticated plants. Interspecies gene transfer occurs naturally; interspecies hybrids produced by sexual means can lead to new species with genetic components of both pre-existing species. Interspecies hybridization played an important role in the development of domesticated plants. Interspecies hybrids can also be produced artificiallly between sexually incompatible species. Cells of both plants and animals can be caused to fuse, producing viable hybrid cell-lines. Cultured hybrid plant cells can regenerate whole plants, so cell fusion allows crosses of sexually incompatible species. Most animal cells cannot regenerate whole individuals; however, the fusion of antibody-forming cells (which are difficult to culture) and "transformed" (cancer-like) cells, gives rise to immortal cell-lines, each producing one particular antibody, so-called monoclonal antibodies. These cell-lines can be used for the commercial production of diagnostic and antidisease antibody preparations. (Fusions involving human cells play a major role in investigations of human heredity and GENETIC DISEASE.) In nature, the transfer of genes between sexually incompatible species also occurs; for example, genes can be carried between species during … Continue reading →

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Pros and Cons of Genetic Engineering | HRFnd

Posted: Published on October 4th, 2016

Manipulation of genes in natural organisms, such as plants, animals, and even humans, is considered genetic engineering. This is done using a variety of different techniques like molecular cloning. These processes can cause dramatic changes in the natural makeup and characteristic of the organism. There are benefits and risks associated with genetic engineering, just like most other scientific practices. Genetic engineering offers benefits such as: 1. Better Flavor, Growth Rate and Nutrition Crops like potatoes, soybeans and tomatoes are now sometimes genetically engineered in order to improve size, crop yield, and nutritional values of the plants. These genetically engineered crops also possess the ability to grow in lands that would normally not be suitable for cultivation. 2. Pest-resistant Crops and Extended Shelf Life Engineered seeds can resist pests and having a better chance at survival in harsh weather. Biotechnology could be in increasing the shelf life of many foods. 3. Genetic Alteration to Supply New Foods Genetic engineering can also be used in producing completely new substances like proteins or other nutrients in food. This may up the benefits they have for medical uses. 4. Modification of the Human DNA Genes that are responsible for unique and desirable qualities in … Continue reading →

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Hematology Conferences | Blood Disorder Conferences | USA …

Posted: Published on October 4th, 2016

6thInternational Conference on Hematology Date:October 03-05, 2016 Venue:Orlando, Florida, USA Hematology 2016 has been designed with many interesting and informative scientific sessions; it includes all possible aspects of Hematology research. Hematology Erythrocytesare also known as red blood cells which carry oxygen to the body and collect carbon dioxide from the body by the use of hemoglobin and its life span of 120 days. along the side the leucocytes helps in protecting the healthy cells because the W.B.C (leucocytes) act as the defending cells in protecting the immune system from the foreign cells. Theseleucocytesare multipotent cells in bone marrow and there life span is of 3-4 days where the yellow blood cells are called as thrombocytes they are where small and irregular in shape they have life span of 5-9 days they are mostly seen in mammals they help in clotting of blood which are in fibrin form called as thrombosis these lead to heart stroke, blockage of blood in blood mostly in arms and legs. where C.B.C is known ascomplete blood countis done to know the number of cells in a body these are mainly done by lab technician presently they are been tested by automatic analyzer the high and … Continue reading →

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Cell Size and Scale – Learn Genetics

Posted: Published on October 2nd, 2016

Some cells are visible to the unaided eye The smallest objects that the unaided human eye can see are about 0.1 mm long. That means that under the right conditions, you might be able to see an ameoba proteus, a human egg, and a paramecium without using magnification. A magnifying glass can help you to see them more clearly, but they will still look tiny. Smaller cells are easily visible under a light microscope. It's even possible to make out structures within the cell, such as the nucleus, mitochondria and chloroplasts. Light microscopes use a system of lenses to magnify an image. The power of a light microscope is limited by the wavelength of visible light, which is about 500 nm. The most powerful light microscopes can resolve bacteria but not viruses. To see anything smaller than 500 nm, you will need an electron microscope. Electron microscopes shoot a high-voltage beam of electrons onto or through an object, which deflects and absorbs some of the electrons. Resolution is still limited by the wavelength of the electron beam, but this wavelength is much smaller than that of visible light. The most powerful electron microscopes can resolve molecules and even individual atoms. … Continue reading →

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Pregnancy – Wikipedia, the free encyclopedia

Posted: Published on October 1st, 2016

Pregnancy, also known as gravidity or gestation, is the time during which one or more offspring develops inside a woman.[1] A multiple pregnancy involves more than one offspring, such as with twins.[2] Pregnancy can occur by sexual intercourse or assisted reproductive technology. It usually lasts around 40weeks from the last menstrual period (LMP) and ends in childbirth.[1][3] This is just over ninelunar months, where each month is about 29 days.[1][3] When measured from conception it is about 38 weeks. An embryo is the developing offspring during the first eight weeks following conception, after which, the term fetus is used until birth.[3] Symptoms of early pregnancy may include missed periods, tender breasts, nausea and vomiting, hunger, and frequent urination.[4] Pregnancy may be confirmed with a pregnancy test.[5] Pregnancy is typically divided into three trimesters. The first trimester is from week one through 12 and includes conception. Conception is when the sperm fertilizes the egg. The fertilized egg then travels down the fallopian tube and attaches to the inside of the uterus, where it begins to form the fetus and placenta.[1] The first trimester carries the highest risk of miscarriage (natural death of embryo or fetus).[6] The second trimester is from week … Continue reading →

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High Growth Industry Profile – Biotechnology

Posted: Published on September 30th, 2016

Recruitment and Retention To succeed and grow in the 21st century economy, biotechnology employers need to fill each position in their companies - from entry-level to the most advanced - with qualified and skilled individuals. Because the industry is experiencing such rapid growth, biotechnology firms often demand more skilled workers than are available and are projected to need more workers than are currently enrolled in training programs. Skills Competencies and Training While there may be instances where locally industry-driven career ladders and competency models exist, there is a challenge with the lack of nationally-recognized articulated skills competencies and career ladders as well as sources of training. However, the biotechnology industry's challenges in this area are complicated by the rapidly changing environment in which the industry operates. Advances in the underlying sciences have a continuous effect on the technology and processes used by the biotechnology industry; making it necessary for employees working in the industry to upgrade their skills to maintain productivity. Image and Outreach to the Public There is a need for clear information about career options within the biotechnology industry geared towards youth, educators and job seekers for career exploration and recruitment activities. Currently this lack of available information … Continue reading →

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Journal of the American College of Cardiology …

Posted: Published on September 29th, 2016

Volume 68, Issue 14 - selected pp. A1-A40, e27, 1497-1608 (4 October 2016) Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Not entitled to full text Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Not entitled to full text Not entitled to full text Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Not entitled to full text Issue contains Open Access articles Issue contains Open Access articles Not entitled to full text Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Not entitled to full text Not entitled to full text Issue contains Open Access articles Not entitled to full text Issue contains Open Access articles Not entitled to full text Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Not entitled to full text Issue contains Open Access articles Issue contains Open Access articles Issue contains Open Access articles Issue contains … Continue reading →

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5 Parkinson’s Disease Natural Treatment Remedies – DrAxe

Posted: Published on September 28th, 2016

Parkinsons diseaseis a degenerative illness of the nervous system that results in loss of intentional movement and impaired motor functioning.Parkinsons disease affects smooth, natural movements of the body, and can make it hard to perform everyday tasks like speaking properly, walking, swallowing and sleeping. With Parkinsons, the area of the brain that controls muscular movements receives less dopamine than usual. Dopamine is an important chemical necessary for not only coordinating proper body movements, but also things like learning, increasing motivation and regulating moods. This is one reason why depression and other mood changes often affect those with Parkinsons. What causes Parkinsons, and is it curable? There is no specific known cause, but some aggravating factors include exposure to certain chemicals and toxic water, plus inflammation of the brain. While there is no cure for Parkinsons (the condition is both chronic and progressive), there are medications available to boost dopamine in the brain and to help manage symptoms.(01) When it comes to the effectiveness of medications and traditional drugs, often over time Parkinsons symptoms will stop responding. This is why its very important to take extra measures to slow down the progression of symptoms, ideally in the early stages of the … Continue reading →

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DNA and Genes – 2016 Articles About Genetics and Life

Posted: Published on September 27th, 2016

Genes are the blueprints of life. Genes control everything from hair color to blood sugar by telling cells which proteins to make, how much, when, and where. Genes exist in most cells. Inside a cell is a long strand of the chemical DNA (deoxyribonucleic acid). A DNA sequence is a specific lineup of chemical base pairs along its strand. The part of DNA that determines what protein to produce and when, is called a gene. First established in 1985 by Sir Alec Jeffreys, DNA testing has become an increasingly popular method of identification and research. The applications of DNA testing, or DNA fingerprinting within forensic science is often what most people think of when they hear the phrase. Popularized by television and cinema, using DNA to match blood, hair or saliva to criminals is one purpose of testing DNA. It is also frequently used for other benefits, like wildlife studies, paternity testing, body identification, and in studies pertaining to human dispersion. While most aspects of DNA are identical in samples from all human beings, concentrating on identifying patterns called microsatellites reveals qualities specific and unique to the individual. During the early stages of this science, a DNA test was performed … Continue reading →

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Menopausal Hormone Therapy and Cancer – National Cancer …

Posted: Published on September 26th, 2016

What is menopausal hormone therapy? Menopausal hormone therapy (MHT) is a treatment that doctors may recommend to relieve common symptoms of menopause and to address long-term biological changes, such as bone loss, that result from declining levels of the natural hormones estrogen and progesterone in a womans body during and after the completion of menopause. (More information is available on the MedlinePlus Menopause page.) MHT usually involves treatment with estrogen alone, estrogen plus progesterone, or estrogen plus progestin, which is a synthetic hormone with effects similar to those of progesterone. Women who have had a hysterectomy are generally prescribed estrogen alone. Women who have not had this surgery are prescribed estrogen plus progestin, because estrogen alone is associated with an increased risk of endometrial cancer, whereas research has suggested that estrogen plus progestin may not be. How do the hormones used in MHT differ from the hormones produced by a womans body? The hormones used in MHT come from a variety of plants and animals, or they can be made in a laboratory. The chemical structure of these hormones is similar, although usually not identical, to those of hormones produced by womens bodies. The U.S. Food and Drug Administration (FDA) … Continue reading →

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