Types of Stem Cutting! Herbaceous Cuttings These cutting are made from non-woody plants such as house plants and perennials. Appromaxite a three to five inch piece of stem is removed from the parent plant. Leaves on the lower section roughly about one third to one half of the stem are removed. A higher percentage of the cuttings roots germinate and they do so quickly. Softwood Cuttings (Leafed cuttings) These cuttings are prepared from soft‚ woody plants just as they are about
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Cells‚ Cell Division‚ and Cell Specialization Fundamentally Different Types of Cell Prokaryotic Cell- single celled: only DNA+ structure (“before nucleus”) E.g. zygote-complete DNA Eukaryotic Cell-multi-celled (“after nucleus”) Prokaryotes Eukaryotes DNA In “nucleoid” region Within membrane-bound nucleus Chromosomes Single‚ circular Multiple‚ linear Organelles None Membrane-bound organelles Size Usually smaller Usually larger- 50 times Organization Usually single-celled Often multicellular
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November‚ Vol.1‚ No 7 www.impactjournals.com/oncotarget/ Drug Discovery Approaches to Target Wnt Signaling in Cancer Stem Cells Joshua C. Curtin and Matthew V. Lorenzi 1 Oncology Drug Discovery‚ Research and Development‚ Bristol-Myers Squibb‚ Princeton‚ NJ‚ USA Correspondence to: Matthew V. Lorenzi‚ e-mail: Matthew.Lorenzi@bms.com Keywords: oncotarget‚ cancer‚ stem cells‚ wnt‚ drug discovery Received: August 8‚ 2010‚ Accepted: October 27‚ 2010‚ Published: October 30‚ 2010 Copyright: ©
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Well how does the study of physics made a milestone for the world. And how does it help me in my daily life. Physics is the science of matter and its motion‚ space-time and energy. Physics describes many forms of energy - such as kinetic energy‚ electrical energy‚ and mass; and the way energy can change from one form to another. Everything surrounding to us is made of matter and Physics explains matter as combinations of fundamental particles which are interacting through fundamental forces. It
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pets because they help you to live longer. There are several debates whether dogs and cats as pets will make humans live longer than usual. In this essay‚ we are going to show some research studies about it. People love their pets. More than 60 percent of U.S. households include pets‚ and those pet owners pay around $41 billion a year into pet care . This may seem like a lot of money. But when you consider the fact that owning a pet could very likely add years to your life ‚owning a pet may
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Millions and millions of cells must be formed in order for an organism (whether a plant or animal) to be created. That becomes possible through cell division. Cell division happens when all of the DNA of a cell is replicated completely and then that complete replication (called a genome) is separated‚ breaking apart into two daughter cells that are identical to the original cell (Erster 3-4). There are different kinds of division depending on the type of cell involved (Erster 25). However‚ regardless
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Globally‚ research has shown that liver disease causes approximately 2 million deaths each year. The majority of liver diseases are caused by bile duct damage. This system of tubes acts as the sole transporter of bile‚ a yellowish substance used for digestion‚ from the liver to the intestine. When these tubes become damaged‚ they become narrower‚ resulting in the accumulation of bile‚ thus destroying the liver. Consider the bile duct as the conveyor belt in a factory; when it malfunctions‚ the products
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Have you ever considered how important science is to one’s life? Do you ever think about how your life would be without the knowledge it provides? Science‚ the study of the natural world through experimentation and observation‚ has a very important role in our lives. We need science to better understand the universe‚ our planet‚ and our own species. From a young age‚ I have had an appreciation of the importance of science as well as a desire to understand it‚ especially biology. I have always found
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animal cell is not visible to the naked eye and is about 10 to 30 micrometers. A micrometer is one one-thousandth of a millimeter. They are so small that it takes a microscope with a magnification of at least 400x to be able to see inside the cell. These cells are what make up the basic units of structure and function in all living things. They carry out our life processes and make it possible for us to function and live. Inside these cells are organelles‚ which are smaller than the cell itself.
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Sickle Cell Anemia Sickle Cell Anemia is a blood disorder that shortens the life span of red blood cells‚ and eventually the organisms they are located in. Sickle Cell Anemia is an inherited blood disorder that changes that structure of red blood cells. In a healthy organism‚ red blood cells are disk shaped and move easily through the blood vessels. In an organism that has sickle cell anemia the red blood cells’ structures are corrupted; instead of the disk-like shape‚ the red blood cells have a
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