Related to deficiencies in certain types of cones
In transcription, the mRNA strand is formed by complementary base pairing of the template DNA strand. However we should note that the nitrogenous bases in mRNA are Adenine, Guanine, Cytosine and
Uracil
, while those in DNA are Adenine, Guanine, Cytosine and
Thymine
.
So the mRNA strand would be formed by matching the
A in DNA with U in mRNA
,
T in DNA with A in mRNA
,
C in DNA with G in mRNA
and
<span>G in DNA with C in mRNA</span>