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q what is the rule for the pairing of nitrogen-containing bases in the dna molecule and in the rna is this the last question appropriatethe rule for
q as per the watson - crick model how many polynucleotide chains does a dna molecule havethe dna molecule is formed by two polynucleotide chains
q who were james watson maurice wilkins and francis crickwatson north american wilkins new zealander and crick british were the discoverers of the
q bacteria are prokaryotic cells ie they dont have a membrane-delimited nucleus eukaryotes have cells with a delimited nucleus where in these kinds
q which are nucleotides portions that to bind in the formation of nucleic acids what is meant by the 5 and 3 extremities of the nucleic acidsthe
q concerning the nitrogen- containing bases that participate in nucleotides what is the difference between rna and dnain dna nucleotides can be
q into which two groups can the nitrogen-containing bases that form rna and dna be classified what is the criterion used in to that classificationthe
q what are the pentoses to what organic group do the pentoses belong are nucleotides formed of only one kind of pentosecarbohydrates are pentoses
q of what units are the nucleic acids constituted what are chemical entities that compose that unitthe nucleic acids are formed by sequences of
q what are the nucleic acids what is the historic origin of this namerna and dna the nucleic acids are the molecules responsible for the hereditary
q what are the zymogensproenzymes or zymogens are enzymes secreted in inactive form under some conditions a zymogen shifts to the active form of the
q what are the allosteric enzymesallosteric enzymes are those that have in excess of one activation center and to which other substances called
q what is the action mechanism of the antiretroviral drugs known protease inhibitors which are used against hiv infectionprotease inhibitors are some
q what is action mechanism of antibiotic penicillinpenicillin discovered by the scottish doctor alexander fleming in 1928 is a drug that inhibits
q for the enzymatic reaction what is the effect of a substance with the same spatial conformation like an enzymatic substrate how is this kind of
q what is the relationship between enzyme and vitamins cofactorsmany vitamins are enzyme cofactors that cannot be synthesized by the organism and
q what are the enzyme cofactorssome of enzymes require other associated molecules to work these molecules are known as enzyme cofactors and they can
q since pepsin is a gastric enzyme does it have a basic or an acid optimum ph what happens to pepsin when it passes into the duodenumpepsin acts
q do enzymes act better under basic or acid phmost enzymes act in ph between 6 and 8 a range that corresponds to the general acidic level of blood
q does ph affect the enzyme activitythe concentrations of hydrogen ions in solution affect the enzyme activity each enzyme has utmost efficiency
q how is the cooling of tissues and organs for medical transplants associated with the effect of temperature upon enzymatic reactionsthe molecular
q concerning enzymatic reactions how dissimilar are the graphic curve of the variation of the speed of a reaction as function of substrate
q can you explain metallized filmsin metallized films plastic films such as those of polyester polyamide and polypropylene are coated with
q explain surlyn filmsurlyn films surlyn su is a versatile film which is sometimes favoured over polyethylene due to some unique properties such as
q what is the use of uncoated polyvinyl chlorideuncoated polyvinyl chloride pvc and polyvinylidene chloride pvdc pvc and pvdc are closely related