Build a segment of the DNA consisting of Adenine, Thymine, Cytosine and Guanine. Color-coded pieces designate certain molecules making up the four nucleotides present in DNA. Kit includes: 12 packets of model parts, each with enough material to construct a segment of 6-paired bases. Instructions and reproducible student worksheets are also included.
Chromosomes are structures in the nucleus of a cell and are composed of long strands of deoxyribonucleic acid (DNA). In 1953, two scientists, James D. Watson and F.H.C. Crick, proposed a model of the structure of the complex DNA. They described the molecule as a double helix or spiral, composed of nucleotides. Each nucleotide is composed of a phosphate unit joined to deoxyribose, a five-carbon sugar and a nitrogen-containing base. The DNA molecule is a double strand of possibly thousands of nucleotides bonded by synthesis in a cell.
12 - 3 prong "deoxyrobose" centers (black)
12 - 2 prong "phosphate" centers (red)
3 - "Adenine" straws (red)
3 - "Guanine" straws (gray)
3 - "Thymine" straws (blue)
1 - 4 prong center
3 - "Cytosine" straws (short green)
6 - Hydrogen bondcenters (white)
24 - connectors (yellow)
1 - long strand (gray)
3 long posts (green)
3 - "Uracil" (white)
Manufacturer: American Educational Products
American Educational Products are focused on the early childhood and physical education arena. Teachers, parents and caregivers will find creatively designed products to stimulate children's motor skills, as well as their intellectual development. Many of the products are appropriate for children with special needs/disabilities and ideal for school, home and daycare settings.
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Items are to be returned at the customer's expense unless damaged during shipping.