(a) Differentiate between a template strand and coding strand of DNA.
(b) Name the source of energy for the replication of DNA. (3 marks)
(a) The strand that has the polarity 3' - 5' acts as a template strand. This codes for the protein
The other strand of DNA that has polarity 5' - 3' and the same sequence as RNA (except
thymine at the place of uracil) is formed during transcription. This strand which does not code
for anything is called as coding strand.
(b) Deoxyribonucleoside triphosphates provide energy for the replication of DNA.