biology experiment related to biology i

In this experiment all tissues external to xylem from a part of branch is girdled. Now this ringed twig is placed in a beaker containing water. It is noticed that upper leaves of shoot remains turgid and indicates water is still moving upwards through xylem. Ringing Experiment..

Following are some simple activities and experiments related to photosynthes..

Gene therapy is a relatively new method of therapeutic interventions, targeted at the level of cellular gene expansion. In this, altering the diseased state is achieved by delivering nucleic acids into a cell. In gene therapy a normal functional gene is introduced into cells that contain ..

Polygraphy - Polygraph is a simple instrument that records qualitative changes in physiological parameters. These parameters include vital changes like cardiac variables (ECG), heart pulse rate (HR), relative blood pressure (BP), rate of breathing and so on. Popularly called the lie detec..

Gene Therapy - Gene therapy is a relatively new method of therapeutic interventions, targeted at the level of cellular gene expansion. In this, altering the diseased state is achieved by delivering nucleic acids into a cell. In gene therapy a normal functional gene is introduced into cell..

Green House Gases - The concept of green house - though identified by man late - is certainly as old as global environment itself. That is, a part of radiation received by earth's surface is reflected back to environment and trapped due to certain gases. These gases are called green house gases. Im..

. The nervous system has three parts - central nervous system (CNS), peripheral nervous system (PNS) and autonomic nervous system (ANS). The CNS is made up of brain and spinal cord. Brain has different areas that are responsible for specific functions. The areas are divided into: - sensory nerves t..

Summary - With increasing complexity, the organisms have had to develop means of control and coordination between the different parts of the body. Coordination is necessary for acting as one unit and to maintain the homeostasis or steady state within the body. Control and coordination in animals is..

Take a pot with a young plant and rest it on its side so that the stem lies horizontally. Observe after a few days. Geotropism in Roots If a plant is rotated on a special apparatus called clinostat, it neutralizes the effect of gravity and the shoot continues to grow horizontally without any curvat..

Mendel was primarily a monk in a monastery. In addition to his normal duties of preaching in the church, Mendel evinced a keen interest in the maintenance of the garden in the premises of the church. In the course of his routine rounds in the garden, Mendel was keenly observing the pattern of..