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Q. Which kind of chemical bond maintains the pairing of each chain in the DNA molecule?
To form the DNA molecule, purine bases bind to pyrimidine bases by intermolecular bonds known as hydrogen bonds. Hydrogen bonds occur when there is hydrogen near one of these electronegative elements: fluorine, nitrogen or oxygen.
In such conditions hydrogen looks like having lost electrons for those elements and an extremely strong polarization is created. The highly positive hydrogen attracts pairs of electrons of other molecules making a hydrogen bond.
Q. What is the role of the ozone layer for living beings? The Ozone, O3, is a gas of the atmosphere that filters ultraviolet radiation from the sun disallowing most of that rad
define inflorescence and explain in detail about it''s types
Explain Differential Staining Technique? It divides bacteria into separate groups based on staining properties, like Gram's stain, Acid-fast stain etc. Here 2 or more contrasti
#question.what are the reason that arthropodans are abundant in nature.
Types of overpopulation - Consumption overpopulation Consumption overpopulation is a phenomenon seen in technologically advanced and affluent countries such as U.S.A., Japan,
Physical Weathering Mechanical forces acting upon the rocks cause physical weathering. Temperature fluctuations cause expansion and contraction of rock surface resulting in the
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How body fat can be measured? The conventional golden method of measuring BF% is by underwater weighing. Difference of weight in air and in water gives density, from which the
Artificial Parthenogenesis In various cases, the eggs that normally develop only after fertilisation can be experimentally induced to develop parthenogenetically by specific
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