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Ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) have ribose and deoxyribose as the pentose sugar, respectively. They also differ, to some extent, in possession of nitrogenous bases. DNA contains four types of nitrogenous bases -adenine, thymine, cytosine and guanine, while RNA contains uracil in place of thymine and the three other bases as in DNA. Figure illustrates the chemical structure of these nitrogenous bases.
Explain Active Transport - Mechanism of Urine Formation Active transport: When the substances are transported through a cell membrane against a concentration gradient, that is,
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TO LEARN THE USE OF A CARBON DIOXIDE FIRE EXTINGUISHER : All chemical laboratories should be provided with carbon dioxide and or dry chemical fire extinguishers. Carbon dioxide fi
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To perform the specific biological func. for the normal maintenance of optium growthand health.
why do we study science?
Define Platelets Blood platelets, the third blood cells are the smallest formed by the pinching of a very large bone marrow cell called megakaryocyte. Platelets literally mean
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Describe the factors which decide the broad area of Scientific activity.
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