3. Cut the DNA into
overlapping frag-
ments short enough
for sequencing.
1
Clone the fragments
in plasmid or phage
vectors.
2
Sequence each
fragment.
3
Order the
sequences into
one overall
sequence
with computer
software.
4
Figure 21.3-3
12. Figure 21.7
Exons (1.5%) Introns (5%)
Regulatory
sequences
(∼20%)
Unique
noncoding
DNA (15%)
Repetitive
DNA
unrelated to
transposable
elements
(14%)
Large-segment
duplications (5−6%)
Simple sequence
DNA (3%)
Alu elements
(10%)
L1
sequences
(17%)
Repetitive
DNA that
includes
transposable
elements
and related
sequences
(44%)