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In sickle cell anemia, a hereditary disease, there is substitution of one amino acid by other in one of the four-polypeptide chains of hemoglobin. In this case, are all of the structural levels of the protein modified?
1348What happen to a denaturated enzyme regarding its functionality? How that result can be explained with the help of the lock and key model?
1160Which are the nucleotides “portions” that bind in the formation of nucleic acids? What is meant by the 5’ and 3’ extremities of nucleic acids?
1073What are pentoses? To what organic group do pentoses belong? Are nucleotides formed of only one type of pentose?
1084What is the completing sequence of nitrogen-containing bases for an agccgttaac fragment of a dna chain?
1235Bacteria are prokaryotic cells, i.e., They do not have membrane-delimited nucleus. Eukaryotes have cells with delimited nucleus. Where in these types of cells can dna are found?
1206Post New Bio Chemistry Questions
How is the cooling of organs and tissues for medical transplantations associated with the effect of temperature upon enzymatic reactions?
What does one Debye equals?
Why nitrogen cannot form penta halides?
What are pentoses? To what organic group do pentoses belong? Are nucleotides formed of only one type of pentose?
What does hess law states?
To calculate the e.m.f of the cell when does the nelsons equation is use?
Which theory explains the paramagnetic nature of oxygen? Who proposed it?
Which equation gives the relation between specific rate (k) and temperature?
what are the steps involved in the calibration of HPLC
What are allosteric enzymes?
How are free energy changes related to enthalpy changes and entropy changes?
Is there difference between the initial and the final energy levels in catalyzed and non-catalyzed reactions?
What is the activation center of an enzyme? Is it the key or the lock of the lock and key model?
What are enantimorphs and diastereomers ?
What is the main enzyme that participates in dna duplication process?
