Question

During transcription, the DNA strand which acts as a template is called ___A___ strand and it has ___B___ polarity.

Options

• A	B
  antisense	3' → 5'

• A	B
  coding	5' → 3'

• A	B
  sense	3' → 5'

• A	B
  sense	5' → 3'

Answer 1

During transcription, the DNA strand which acts as a template is called antisense strand and it has 3' → 5' polarity.

Explanation:

The template (antisense or noncoding) DNA strand is read by RNA polymerase in the 3' → 5' direction during transcription, producing an mRNA strand synthesized 5' → 3' that is complementary to the antisense strand (and corresponds to the coding/sense strand except T → U).