Q. 23.  If the sequence of nitrogen bases of the coding strand of DNA in a transcription unit is
                               5' - A T G A A T G - 3'
the sequence of bases in its RNA transcript would be

(a) 5' - A U G A A U G - 3'

(b) 5' - U A C U U A C - 3'

(c) 5' - C A U U C A U - 3'

(d) 5' - G U A A G U A - 3'


(a)  5' - A T G A A T G - 3' (coding strand)

                               
              5' - T A C T T A C - 3' (complementary strand)
                               
              5' - A U G A A U G - 3'(RNA)