Question : give two reasons why both the strand of DNA are not copied during transcription.

Question : give two reasons why both the strand of DNA are not copied

1.	Question : give two reasons why both the strand of DNA are not copied during transcription.
Answer» Solution :(a) If both the strands of DNA are copied , two different RNAs (complementery to each other) and hence two different polyeptides, if a segment of DNA produces two polypeptides, the GENETIC information machinery becomes complicated. (b) The two complementary RNA molecules (produced simultaneously) would form a double- stranded RNA rather than gething TRANSLATED into polypeptides. ( c ) RNA POLYMERASE carries out polymerisation in 5.-3. direction and hence the DNA STRAND with 3.-5. polarity acts asthe template strand. (Any two)