Question 1
Which are generally longer in mammals, exons or introns?
◦ They are about the same length.
◦ Some exons and some introns can be very long.
◦ Exons
◦ Introns
◦ Both tend to be very short.
Question 2
Which base in the intron branch sequence is highly conserved?
◦ A
◦ G
◦ C
◦ T
◦ None of these is correct.