The terms dominant and recessive describe the inheritance patterns of certain traits. But what do they really mean Glossary of Biological Terms BACK. P pacemaker. A specialized region of the right atrium of the mammalian heart that sets the rate of contraction also called the. CLASSICAL GENETICS DNA and proteins are key molecules of the cell nucleus. One gene makes one protein. A gene is made of DNA. Bacteria and viruses have DNA too. Chapter 4 Cell Structure study guide. September 2. 0, 2. NUCLEUS+NUCLEUS+Directs+all+cell+ACTIVITIES.jpg' alt='Describe The Role Of The Nucleus In Cell Activities Are Controlled' title='Describe The Role Of The Nucleus In Cell Activities Are Controlled' />Introduction Studies on the evolution of the human Gastrointestinal Tract GIT have shown evolutionary traits that are similar to those of fish and other related vertebrates. This study has shed light on GIT illnesses related to the intestines and digestion, such as obesity, Irritable Bowel Syndrome and Diabetes, just to name a few. These findings Continue reading Chapter 4 Cell Structure study guideSeptember 6, 2. The biocompatibility, biodegradability and strength of spider silk are some of the properties that have excited researchers on the possibilities it provides. This is a protein based compound that does not cause any adverse allergic, immune or inflammatory reactions in humans. Driver Audio Hp Mini 2140 Price. Recently, recombinant technology has enabled scientists to manufacture spider silk, and there is a race Continue reading Chapter 4 Cell Structure study guideAugust 1. Researchers believe that the cure for Parkinsons disease may be found by conducting their experiments in microgravity environments in space. One of the key Parkinsons Disease proteins, called LRRK2, will be sent to the International Space Station for further study. Researchers say that microgravity conditions found in space will provide an optimal environment for conducting Continue reading Chapter 4 Cell Structure study guideJuly 3. Molecular biology This is a term that has recently gained in popularity. Most people do not really understand how this branch of biology works. This article will explain the definition of molecular biology and its irreplaceable role for the health of mankind. What is Molecular BiologyMolecular biology is a branch in biological science Continue reading Chapter 4 Cell Structure study guideJune 4, 2. We all know plants require sunlight, micro nutrients, macro nutrients and CO2 to grow healthy. Describe The Role Of The Nucleus In Cell Activities For 5thHowever, very few know that there is an optimum amount for each to ensure a healthy growth for plants. If one is far less than the others, while growth may occur, it certainly wouldnt be the healthiest way. Balance is Continue reading Chapter 4 Cell Structure study guide.