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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.
What are antioxidants? To put it simply, antioxidants are important naturally occurring nutrients, (vitamins, minerals) which help to protect body from certain types of cancers
Q. Is the embryonic development in birds indirect or direct? The embryonic development is direct there is no larval stage. Q. What are the predominating chemical compounds
Organic Molecules Some organic molecules in life are Carbohydrates and Lipids à C, H and O Proteins à C, H, O, N & sometimes S Nucleic acids à C, H, O, N & P
In organisms that have undergone tagmosisthe trunk often develops into two tagma, oneinvolved in locomotion and one that is notlocomotory. The tagma not involved in locomotionis re
Molecular Hydrogen N 2 -fixing organisms also produce a membrane bound enzyme called uptake-hydrogenase under N 2 -fixing condition. The physiological significance of the pres
Post-operative care of teeth After implant surgery, patients should be warned to expect: Some swelling and possibly bruising. Some discomfort which can usually be contr
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Energy Storage As we said above, food intake and energy expenditure for animals is approximately equal. If energy expenditure exceeds food intake, then the excess energy is t
Centimorgan (cM) is the unit of measure of a statistical probability recombination frequency between the alleles. One centimorgan is equal to the 1% chance that a marker at one ge
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