Question

If the template strand is 5' GCC ATA 3', the coding strand will be...

A) 5' GCC ATA 3'
B) 3' GCC ATA 5'
C) 5' CGG TAT 3'
D) 3' CGG TAT 5'

Answer 1

The complementary coding strand to the DNA template strand 5' GCC ATA 3' is 3' CGG TAT 5'. The correct option is D.

Step-by-step explanation:

If the template strand of DNA is 5' GCC ATA 3', the coding strand, also known as the non-template strand, will read as the reverse complement without replacing thymine (T) with uracil (U), which would be case during mRNA transcription.

So, given the complementarity rules where cytosine (C) pairs with guanine (G) and adenine (A) pairs with thymine (T), the correct sequence of the coding strand is 3' CGG TAT 5'. Therefore, the appropriate answer would be D) 3' CGG TAT 5'.