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Suppose many of the atoms of nitrogen in a double-stranded molecule of DNA, of isotope N-14, were replaced with the isotope N-15. What afffect would this have?
a) The nitrogeneous bases would become slightly basic.
b) the Base pairing would no longer occur naturally,
c) The DNA could turn into RNA
d) there would be no detectable effect on the DNA
f) The molecule would increase in mass slightly.
Define Ion exchange chromatography? In this method a reversible exchange of ions is effected. Usually resins and ionic solutes are the two components involved in ion-exchange.
Mineralisation and Humification As a result of physical weathering, the rocks are broken down into smaller particles. But this is not the true soil, and plants cannot grow well
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Explain the Infarct Exclusive Technique? Infarct Exclusive Technique : Left ventriculotomy is done through the infarcted area. No attempt is made to close the ventricu
Explain Procedure for Checking the Presence of Rhodamine B? Conduct the experiment following the procedure given herewith: 1. Pour liquid paraffin or mineral oil in a Petri
Explain the stages in taxonomic procedures - Beta Taxonomy This stage is also known as macro taxonomy or synthesis taxonomy. At this level the species are arranged or classifie
Medication delivered in the form of a pill contains an active ingredient or ingredients. Beside the drug itself, the pill also contains "fillers". The filler has several functions.
how ionosinic pathway ric acid from ammonia forms u
Q. Do all the eukaryotic cells have nucleus and/or only one nucleus? There are eukaryotic cells devoid of a nucleus and others with more than one nucleus. Osteoclasts, the cell
Operculum - Seed Appendages The term operculum is applied to a plug-like structure formed in the micropylar portion of the seed by proliferation of cells at the tip of the inn
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