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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?
1266What happen to a denaturated enzyme regarding its functionality? How that result can be explained with the help of the lock and key model?
1106Which are the nucleotides “portions” that bind in the formation of nucleic acids? What is meant by the 5’ and 3’ extremities of nucleic acids?
1017What are pentoses? To what organic group do pentoses belong? Are nucleotides formed of only one type of pentose?
1041What is the completing sequence of nitrogen-containing bases for an agccgttaac fragment of a dna chain?
1182Bacteria 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?
1154Post New Bio Chemistry Questions
Explain what is the primary structure of a protein? What is the importance of the primary structure?
What are respectively some remarkable functions of immunoglobulin?
What is xylose? What is its chemical formula?
What does ammonal contain? For what purpose ammonal is used?
Is there difference between the initial and the final energy levels in catalyzed and non-catalyzed reactions?
The elution volume of an enzyme on a gel filtration column can be predicted from a) its enzyme activity b) its protein absorbance at 280 nm c) subunit composition and monomer molecular mass(es) d) Choices a) and b) are both correct.
Which element in 1A group is lighter than water?
Who proposed law of mass action? What does it states?
What are allosteric enzymes?
Define activation energy?
What is the lattice energy of nacl?
Explain why nitrogen cannot form penta halides?
What are the units of bond length?
Which is the least abundant Alkaline earth element?
Why ethylene undergoes electrophilic addition reactions?
