WormBook. Root Tip Chromosomes. See related protocols on Sprouting Seeds and Use of Oil Immersion Lens . Chromosomes were first seen by C. Nägeli in 1842, and named in 1888 by W. Waldeyer. Walther Flemming studied and documented the behavior of chromosomes during cell division, a process he termed mitosis. Cell division is especially rapid in the growing root tips of sprouting seeds. Here is the general plan of the procedure, supplies and equipment needed: 12. Here are some nice images of chromosomes from onion root tip, taken January 2005. 13. Here is another page of pictures of root tip chromosomes in recent labs. These are the four classic stages of mitosis: 14.
Images from the Microscope. 19-9. Fatty Acids -- Complete beta-oxidation of palmitoyl CoA. Protein Data Bank. A Structural View of Biology This resource is powered by the Protein Data Bank archive-information about the 3D shapes of proteins, nucleic acids, and complex assemblies that helps students and researchers understand all aspects of biomedicine and agriculture, from protein synthesis to health and disease. As a member of the wwPDB, the RCSB PDB curates and annotates PDB data.
The RCSB PDB builds upon the data by creating tools and resources for research and education in molecular biology, structural biology, computational biology, and beyond. Use this website to access curated and integrated biological macromolecular information in the context of function, biological processes, evolution, pathways, and disease states. A Molecular View of HIV Therapy January Molecule of the Month Nuclear Pore Complex Deposition Preparation Tools Data Extraction Small Molecules Ligand Expo: Search the Chemical Component Dictionary for the IDs of released ligands Data Format Conversion 3D Structure Viewers. EC 3.2.1.48 - sucrose alpha-glucosidase. ENZYME.