DNA Twist’, American Printing House for the Blind, was the topic of an earlier blog post.
Here I present: DNA Twist’, American Printing House for the Blind. PART TWO (II).
INTRODUCTION.
DNA Twist’ & Cubarithm’ are educational products from the American Printing House for the Blind (APH). The two (2) APH items allows students to envision the chromosomal DNA of the human body. The human body is composed of chromosomal DNA with the following base pair numbers:
1: 248,956,422
2: 242,193,529
3: 198,295,559
4: 190,214,555
5: 181,538,259
6: 170,805,979
7: 159,345,973
8: 145,138,636
9: 138,394,718
10: 133,797,422
11: 135,086,622
12: 133,275,309
13: 114,364,328
14: 107,043,718
15: 101,991,189
16: 90,338,345
17: 83,257,441
18: 80,373,285
19: 58,617,616
20: 64,444,167
21: 46,709,983
22: 50,818,468
X: 156,040,895
Y: 57,227,415
By placing Braille’ symbols into the slate, blind students are able to comprehend human chromosomal DNA. DNA Twist’ & Cubarithm’ from APH are highly recommended educational products, that can be used by both blind and sighted.
