⟩ Name the family of third ‘A’ group elements
Boron family
Boron family
What is the action mechanism of the antiretroviral drugs called protease inhibitors and used against HIV infection?
Of what units are, nucleic acids constituted. What are the chemical entities that compose that unit?
Bacteria 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?
What are pentoses? To what organic group do pentoses belong? Are nucleotides formed of only one type of pentose?
Into which two groups can the nitrogen-containing bases that form DNA and RNA be classified? What is the criterion used in that classification?
Who were James Watson, Francis Crik and Maurice Wilkins?
Which are the nucleotides “portions” that bind in the formation of nucleic acids? What is meant by the 5’ and 3’ extremities of nucleic acids?
What is the rule for the pairing of nitrogen-containing bases in the DNA molecule and in the RNA? Is this last question appropriate?
According to the Watson - Crick Model how many polynucleotide chains does a DNA molecule has?
Which type of chemical bond maintains the pairing of each chain in the DNA molecule?