6. 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?

Gap-fill exercise

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The phosphate group of one nucleotide
binds to the of the other
nucleotide and so on to make the
polyn chain.

Each extremity of a or chain
can be distinguished from the other
extremity according to their terminal
entity. The -ended
extremity is called 5’-extremity and the
-ended extremity is called
3’-extremity. So DNA or RNA chains can
be run along the 5’-3’ way or along the
3’-5’ way. These ways are important in
several functions of DNA and
RNA since some r specifically
occur following one way or the other
way.