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 worksheets are also included. Grades 7-12. Shipped directly from the manufacturer. Not available with rush shipping. Delivery time estimated at 10-14 days or less. Gift wrap not available. Information on how to place your order by fax or by telephone. Product Number AMRDNA1