DNA bond strength (nucleotides)

Crazy Glue”:

Strongest bonds are between Cytosine and Guanine, strong like Crazy Glue (3 H-bonds), whereas the A=T only have 2 H-bonds.

This is relevant to DNA replication, as the weaker A=T will be the site where RNA primer makes the initial break.


Mitochondrial DNA (mt DNA) properties

mt DNA”.

mt stands for:

Maternal Transfer

Mutates Tremendously (high mutation rate)


tRNA: molecular shape

Fortunately, tRNA (Transfer RNA) is shaped like a capital T.


Pyrimidines are CUT from purines
Pyrimidines are Cytosine, Uracil, Thiamine and are one ring structures.
Purines are double ring structures.


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