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Q. Define Bioactive materials?
Bioactive materials: Certain glasses, ceramics, and glass-ceramics that contain oxides of silicon, sodium, calcium and phosphorus (SiO2 , Na2O, CaO, and P2O5 ) form a chemical bond with bone, resulting in a strong mechanical implant bone bond. These materials do bond to bone through a time-dependent, kinetic modification of the surface triggered by their implantation within living bone. An ion-exchange reaction between the bioactive implant and surrounding body fluids results in the formation of a biologically active calcium phosphate layer on the implant. This layer is chemically and crystallographically equivalent to the mineral phase in bone which is responsible for the strong interfacial bonding.
Sally Subcloner wants to clone a fragment into pUC19 (Map above – From New England Biolabs). Her fragment was a protein coding gene of 2.7 kb, and had XhoI sites on either end (and
In animals, some of bacteria and fungi, and the first step in tetrapyrrole synthesis is the condensation of the amino acid glycine with succinyl CoA (an intermediate of the citri
what is the deference between sp. and spp.?
What proportion of children with Down syndrome do you expect when women with down syndrome have children with men who have 46 chromosomes Justify your answer
Types of dietary adaptations for trerapieutic needs Normal nutrition is the foundation upon which therapeutic modifications are based. We have already discussed in previous
What are the trends of the gametophyte in the evolution of plants? A tendency of the gametophyte evolution in plants has been towards the formation of gametes that are independ
Q. What are the lichens? How fungi participate in this ecological interaction? Lichens are formed by mutualist ecological interaction between algae and fungi or between fungi a
Chemical Weathering The rocks while getting disintegrated may also undergo chemical change. Water is an important agent in bringing about chemical changes due to dissolution or
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Which is the biological molecule that contains the genetic information that is transmitted hereditarily and controls the cellular functioning? The hereditary molecule that cont
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