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  Gene Densities in Chromosome 21

   Total Number of genes in chromosome 21: 1816.

   The following table shows the number of genes in each 1 Mb interval along the chromosome. For this calculation, the midpoint location of each gene was taken.
Interval (Mb)No. of genes
0-10
1-20
2-30
3-40
4-50
5-624
6-749
7-828
8-961
9-1032
10-1132
11-120
12-130
13-1499
14-1536
15-1620
16-1730
17-1832
18-1922
19-2023
20-2117
21-229
22-2321
23-2421
24-257
25-2647
26-2720
27-2822
28-2931
29-3053
30-3164
31-3233
32-3357
33-3445
34-3542
35-3627
36-3766
37-3844
38-3934
39-4064
40-4110
41-4249
42-4353
43-4468
44-45327
45-4655
46-4742
   Total Number of genes in chromosome 21: 1816.

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