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If you were working with two applications or programs at the same time, how would you switch from one to the other?
If you need more than one program open at a time, you can quickly switch between those running applications in Windows XP. [ The keystroke of genius presented here enables you to quickly and efficiently cycle through programs you have running in Windows XP, making the quick switch between running applications just a couple of keystrokes away. 1 Open two or more programs. The last program that
you open is the active program. Enlarge 2 Press and hold Alt+Tab. This will open a small box, revealing all opened programs. 3 Release the Tab key but keep Alt pressed down. If you release the Alt key, just press and hold Alt+Tab again, and try this step again, remembering to keep that Alt key pressed down. 4 Press Tab. Each time you press Tab while keeping Alt pressed down, you cycle through the icons representing open programs. 5 Release the Alt key. Windows XP switches to whichever program is selected. To switch back to the last program that was active, simply press Alt+Tab, and that program becomes the active program once again. ]
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Why is common stock usually not issued at a price that is less than par value?
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Asked 8/6/2013 9:05:02 AM
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Would you select preferred stock or common stock as an investment? Why?
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Asked 8/6/2013 9:49:35 AM
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Describe the structure of DNA.
Weegy: It is a right handed double helix. It is made up of nucleotides that are bound to eachother by phosphodiester bonds. [ It consists of a phosphorous group, and deoxyribose sugar, and a base (Adenine, Guanine, Cytosine, Thymine) Adenine and Guanine are Purines, and the other two are Pyrimidines. The bases are "connected" to each other by hygrogen bonding. A::T G:::C each colon represents the number of H bonds. Deoxyribonucleic acid (DNA) is a molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses. Along with RNA and proteins, DNA is one of the three major macromolecules essential for all known forms of life. Most DNA molecules are double-stranded helices, consisting of two long biopolymers of simpler units called nucleotides—each nucleotide is composed of a nucleobase (guanine, adenine, thymine, and cytosine), recorded using the letters G, A, T, and C, as well as a backbone made of alternating sugars (deoxyribose) and phosphate groups (related to phosphoric acid), with the nucleobases (G, A, T, C) attached to the sugars. DNA is well-suited for biological information storage, since the DNA backbone is resistant to cleavage and the double-stranded structure provides the molecule with a built-in duplicate of the encoded information. The two strands of DNA run in opposite directions to each other and are therefore anti-parallel, one backbone being 3 (three prime) and the other 5 (five prime). This refers to the direction the 3rd and 5th carbon on the sugar molecule is facing. Attached to each sugar is one of four types of molecules called nucleobases (informally, bases). It is the sequence of these four nucleobases along the backbone that encodes genetic information. This information is read using the genetic code, which specifies the sequence of the amino acids within proteins. ] (More)
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Asked 8/6/2013 10:06:28 AM
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2. How does an organism’s genotype determine its phenotype
Weegy: The genotype basically is the genes present. The genes are transcribed to produce mRNA. The mRNA is translated to produce proteins. The proteins are more often than not enzymes that catalyse reactions that would otherwise take forever to happen. [ These reactions involve the formation of products that are functioning in the cell for various things such as structural support, fibres, cytoskeleton, channels on membrane, enzymes that metabolise food molecules like glucose, energy production, transport, signal systems, pigmentation, attachment to other cells and various others. These together work in an orchestrated manner to produce characters that we can morphologically see. For example, there is a gene that produces protein involved in the production of melanin (skin pigment). When this gene is mutated or non-functional, the enzyme isnot produced. Hence the pathway of melani production is shut down and that person does not produce any melanin pigment. This is what we see and call as albinism, the people without any pigment in their skin, hair and eyes. ] (More)
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Asked 8/6/2013 10:16:08 AM
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Describe each stage of the flow of information starting with DNA and ending with a trait.
Weegy: DNA and RNA are long linear polymers, called nucleic acids, that carry information in a form that can be passed from one generation to the next. [ These macromolecules consist of a large number of linked nucleotides, each composed of a sugar, a phosphate, and a base. Sugars linked by phosphates form a common backbone, whereas the bases vary among four kinds. Genetic information is stored in the sequence of bases along a nucleic acid chain. The bases have an additional special property: they form specific pairs with one another that are stabilized by hydrogen bonds. The base pairing results in the formation of a double helix, a helical structure consisting of two strands. These base pairs provide a mechanism for copying the genetic information in an existing nucleic acid chain to form a new chain. Although RNA probably functioned as the genetic material very early in evolutionary history, the genes of all modern cells and many viruses are made of DNA. DNA is replicated by the action of DNA polymerase enzymes. These exquisitely specific enzymes copy sequences from nucleic acid templates with an error rate of less than 1 in 100 million nucleotides. Genes specify the kinds of proteins that are made by cells, but DNA is not the direct template for protein synthesis. Rather, the templates for protein synthesis are RNA (ribonucleic acid) molecules. In particular, a class of RNA molecules called messenger RNA (mRNA) are the information-carrying intermediates in protein synthesis. Other RNA molecules, such as transfer RNA (tRNA) and ribosomal RNA (rRNA), are part of the protein-synthesizing machinery. All forms of cellular RNA are synthesized by RNA polymerases that take instructions from DNA templates. This process of transcription is followed by translation, the synthesis of proteins according to instructions given by mRNA templates. ] (More)
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Asked 8/6/2013 10:22:27 AM
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