Question

If the base sequence on a separated DNA strand is CGTAGG, what will the base sequence on its complementary strand be?

Answer 1

From the rules of base pairing, we know that Adenine always pairs with Thymine and Cytosine always pairs with Guanine.

Adenine is denoted as A

Thymine is denoted as T

Cytosine is denoted as C

Guanine is denoted as G

So for the sequence CGTAGG, the complementary sequence on will be GCATCC.

This strict arrangement is because only with this arrangement can hydrogen bonds be formed between these base pairs . Any other arrangement cannot sustain the integrity of the DNA molecule.