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Which type of chemical bond maintains the pairing of each chain in the DNA molecule?
To produce the DNA molecule, purine bases bind to pyrimidine bases by intermolecular bonds called hydrogen bonds. Hydrogen bonds happen when there is hydrogen near one of these electronegative elements: fluorine, oxygen or nitrogen.
In such conditions hydrogen looks like having lost electrons for those elements and a very strong polarization is formed. The highly positive hydrogen attracts pairs of electrons of other molecules making a hydrogen bond.
PERIOD S OF CULTURAL EVOUITION AND MODERN MAN - Paleolithic period: Stone age. Age of tools of stones and bones, cave paintings. Mesolithi c period: Age of domesticati
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What is the Mendel's second law? The Mendel's second law postulates that two or more different traits are also conditioned by two or more pair of different factors that every i
Tetanus and Diphtheria Everyone who has had a primary series as a child should receive a tetanus-diphtheria toxoid (Td) booster injection once every 10 years. Before traveling
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Preventive steps for global warming : Growing trees in vacant places. Growing social forests and protect them. Promoting abundant growth of phytoplankton plant species in marine
DISORDER OF SKELETON AND JOINTS - 1 . Sprain - It involves a stretching or tearing of tendons or ligaments. 2. Arthritis - It is infalmation of joints.
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Where does cartilage occur in a joint and what it its function? Cartilage might be found covering the surface of bones where they meet in a movable joint. Cartilage decreases f
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