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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.
What are sori? The word "sori" is the plural form of "sorus". In ferns, a sorus (pl. sori) is a cluster of sporangia on the edge or underside of a fertile frond. In lots of spe
Explain how salivary amylase works on foods like crackers
Q. Explain States of matter Ans. Chemistry deals with the nature and composition of matter - anything that occupies space and has mass, and the changes which it undergoes. Matt
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What are the elements that constitute the stomata? The Stomata is made of a central opening the ostiole or slit delimited by two guard cells responsible for its closing or open
How we explain intenal organs when we talk about symmetry??Is there any animal that is completely symmetric even insid the body?
Hiatus Hernia: In this type of hernia, cardiac end of the stomach passes through an abnormally wide oesophageal opening in the diaphragm (see Fig. 2.6). Clinical manifestat
Types of Cambium On the basis of the arrangement of the Fusiform cells as seen in tangential section, cambium is divided into: A) Storied/Stratified Cambium : The groups o
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