There are two types of downloadable files available for each entry in our Cells, Organelles, and DNA Resources for Teachers tool set: PDF files and PowerPoint (PPT) files.
1: PDF files print on a full page of regular paper (8.5" X 11") in high quality in either color or black-and-white.
2: PowerPoint, or PPT, files can be easily imported into slide shows for use in presentations.
3: Credit and usage: All files are copyright-free and provided for use in teaching and learning genetics and biology. Permission is granted to print as many copies as you require for classroom use. Appropriate credits are contained in both the PDF and PPT files as provided.
Credit illustrations as: D. Leja / NHGRI
Credit content as: National Human Genome Research Institute.