DNA's Parity Mechanism

What is parity in mathematics ?

“In mathematics, parity is the property of an integer of whether it is even or odd”    Source: Wikipedia

So this is true if we are talking about numbers. In the case of the DNA Base-pairs we are talking about symbols but the principle involved here is the same

What is parity in computer science ?

“A parity bit, or check bit, is a bit added to a string of binary code. Parity bits are a simple form of error detecting code. Parity bits are generally applied to the smallest units of a communication protocol… The parity bit ensures that the total number of 1-bits in the string is even or odd”    Source: Wikipedia

The DNA principle at play here is known as “Complimentary Base Pairing” and involves four basic chemical molecules:

   “Adenine (A)”    “Guanine (G)”    “Thymine (T)”    “Cytosine (C)”      (Hartl 2020, p. 7)

    (Hartl 2020, p. 8)

In the case of DNA, the parity rule is not “The parity bit ensures that the total number of 1-bits in the string is even or odd” but the rule in the image above from (Hartl 2020, p. 8)

This is discussed in great detail in Research Work Stream 01

References:

Hartl, D. L., 2020. Essential Genetics and Genomics. JONES & BARTLETT PUB INC.